CN105222917A - The contactless measurement of material surface temperature and device under a kind of rugged surroundings - Google Patents
The contactless measurement of material surface temperature and device under a kind of rugged surroundings Download PDFInfo
- Publication number
- CN105222917A CN105222917A CN201510607357.0A CN201510607357A CN105222917A CN 105222917 A CN105222917 A CN 105222917A CN 201510607357 A CN201510607357 A CN 201510607357A CN 105222917 A CN105222917 A CN 105222917A
- Authority
- CN
- China
- Prior art keywords
- catoptron
- distance
- spout
- mirror
- detected materials
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Radiation Pyrometers (AREA)
Abstract
Disclose contactless measurement and the device of material surface temperature under a kind of rugged surroundings of the embodiment of the present invention, the reflection infrared spectrum on detected materials surface under rugged surroundings in survey room is transferred in the conventional environment outside survey room by optical reflection mirror unit by the present invention, the non-cpntact measurement to detected materials surface temperature under rugged surroundings can be realized, when heating distance and changing, without the need to adjusting the position of measurement window and two colorimetric pyrometer, the position of direct mobile optical mirror unit can ensure that the Exit positions of infrared spectrum is constant, not by high temperature, the impact of the rugged surroundings such as electromagnetic field of high frequency, also can not to environmental effects, cost is low, applied range, measuring accuracy is high.
Description
Technical field
The present invention relates to measuring method and the device of material surface temperature, particularly relate to contactless measurement and the device of material surface temperature under a kind of rugged surroundings.
Background technology
The research of hypersonic aircraft has become the key areas of various countries' aeronautical and space technology development.Wherein, being main thermal protection system based on non-ablative or low ablation thermal protection struc ture and material, is the important guarantee of hypersonic aircraft reliability service in flight military service rugged surroundings.For ensureing in Service Environment that anti-/ heat-barrier material meets the usabilities such as high temperature resistant, ablation, heat shock resistance, need to carry out a large amount of fundamental test research work to material.Because testing cost of being on active service online is high, number of times is limited, and parameter cannot accurately control to wait restriction in a large number, and it is unpractical for carrying out basic research work by test of being on active service online.
Based on the demand studied material thermal protective performance, Chinese scholars is developed and be have developed the such as experimental provision such as high frequency wind-tunnel, MESOX, JAXA, in simulated flight environment, the severe Airflow Environment such as high temperature, plasma, achieves rugged surroundings heat resistant material ground experimental study.In ground experiment process, material surface temperature is the key parameter affecting its high-temperature behavior, realizes the accurate measurement of material surface temperature, and then accurately controls to be very important.But due to the rugged environment such as high temperature, electromagnetic field of high frequency in ground simulating, material surface is subject to the direct impact of high speed high-enthalpy flow, the environment tested around sample is made to reach very high temperature.In addition, high-enthalpy flow material issues raw dissociation at very strong high-frequency electromagnetic field action, form plasma environment, can there is the physical-chemical reactions such as violent Adsorption and desorption, oxidation and catalysis on test material surface in gas phase dissociated substance, these rugged surroundings all bring very large challenge to the accurate measurement of material surface temperature.
For the particular/special requirement of the severe experimental situation in ground, for the following technical conditions of material surface temperature measuring equipment demand fulfillment: (1) device materials is high temperature resistant, anti-yaw damper; (2) electromagnetism interference; (3) Airflow Environment flow field is not disturbed; (4) there is chemical stability, not with environment generation chemical reaction.
Wu great Fang etc. (application publication number CN102183312A) utilize the interactional principle of pressure elastic force, based on silicon molybdenum infrared radiation heating, the method of thermocouple temperature measurement is measured nonmetal heat insulation material flat test part surface high-temp, but the method is to the placement limited orientation system of tested material, temperature can only reach 1400 DEG C, and due to thermocouple temperature sensitive parts and the necessary close contact of material, these restrictive conditions all cannot make it use in high frequency wind-tunnel environment.Wu Jiande etc. (application publication number CN103207031A) based on multiple circuit and temperature sensor exploitation non-contact type temperature measurement devices and method also cannot be applied in the environment of high frequency wind-tunnel, because the rugged surroundings such as strong electromagnetic field and high temperature can cause strong interference to test signal, the rugged surroundings such as high temperature also have very large infringement to device itself.
The people such as the Li Ming of China's aerodynamic investigation and centre of development establish one based on hypersonic low density wind tunnel and utilize infrared chart (infra red thermograph), measure measured object surface temperature by regulating the angle of ir reflector.But the method utilizes infra red thermograph to measure, need accurate input material slin emissivity could obtain temperature value accurately.Material surface emissivity by virtue is the function of temperature, test angle, therefore, is change and the unknown in the condition lower surface emissivity of different temperatures, test angle, and therefore, the surface temperature that the method hypothesis slin emissivity is constant and obtains is inaccurate.
Therefore, there are the needs to the non-contact measuring technology of material surface temperature under rugged surroundings in prior art.
Summary of the invention
The embodiment provides contactless measurement and the device of material surface temperature under a kind of rugged surroundings, can measure material surface temperature under the rugged surroundings such as high temperature, high pressure, vigorous physical chemical reaction, electromagnetic field of high frequency interference, measuring accuracy is high, cost is lower, applied range.
According to an aspect of the present invention, provide the contactless measurement of material surface temperature under a kind of rugged surroundings, comprising:
S1, make the axis of high enthalpy high velocity air spout parallel with measurement window, obtain the axial distance between described measurement window and described spout; Make the center of detected materials coaxial with described spout, obtain the axial distance between described spout place plane and described measurement window center line; Make the reflecting surface of the first catoptron and described spout be in same plane, obtain the first distance between the first mirror center and described spout;
S2, regulate the second distance between the second mirror center and the first mirror center based on described axial distance, according to the acute angle between described heating Distance geometry first distance adjustment second mirror reflection surface and the first mirror reflection surface, make from the infrared spectrum of the second catoptron outgoing be positioned at same plane from the infrared spectrum of described detected materials emission center and from described measurement window vertical exit;
S3, the utilization two colorimetric pyrometers be arranged on outside described measurement window gather the infrared spectrum of outgoing, determine the surface temperature of described detected materials;
Wherein, described detected materials and described spout are arranged in survey room, and described measurement window is arranged on the bulkhead of described survey room, and the first catoptron and the second catoptron to be arranged in survey room and between described detected materials and described measurement window.
Preferably, described heating Distance geometry first is apart from equal, and the angle between the reflecting surface of the second catoptron and the reflecting surface of the first catoptron is 22.5 °.
Preferably, if heating distance changes, then taking a step forward of step S3 comprises:
If described heating distance increases, the first catoptron and the second catoptron are moved in direction then along described spout and the first mirror center line, the displacement of the first catoptron and the second catoptron is equal with the recruitment of described heating distance, and the relative position of the first catoptron and the second catoptron remains unchanged;
If described heating distance reduces, the first catoptron and the second catoptron are moved in direction then along the first mirror center and described spout line, the displacement of the first catoptron and the second catoptron is equal with the decrease of described heating distance, and the relative position of the first catoptron and the second catoptron remains unchanged.
Preferably, if heating distance changes, then taking a step forward of step S3 comprises:
If described heating distance increases, then the first catoptron is moved in the direction along described spout and the first mirror center line, and the displacement of the first catoptron is equal with the recruitment of described heating distance; According to the displacement of the first catoptron, the direction along described spout and the first mirror center line is moved the second catoptron and adjusts the acute angle between the second mirror reflection surface and the first mirror reflection surface;
If described heating distance reduces, then the first catoptron is moved in the direction along the first mirror center and described spout line, and the displacement of the first catoptron is equal with the decrease of described heating distance; According to the displacement of the first catoptron, the direction along described spout and the first mirror center line is moved the second catoptron and adjusts the acute angle between the second mirror reflection surface and the first mirror reflection surface.
Preferably, comprise in taking a step forward of step S1: described optical reflection mirror unit is arranged on mirror support;
Step S2 is specially:
Based on described axial distance, regulate the second distance between the second mirror center and the first mirror center by mobile described mirror support; According to described heating Distance geometry first distance, regulate acute angle between the second mirror reflection surface and the first mirror reflection surface by controlling described mirror support, make from the infrared spectrum of the second catoptron outgoing be positioned at same plane from the infrared spectrum of described detected materials emission center and from described measurement window vertical exit.
Preferably, comprise in taking a step forward of step S1: in described survey room, arrange slide rail, described mirror support moves back and forth on described slide rail;
The described mirror support of described movement is specially: described mirror support is moved on described slide rail.
Preferably, mirror support is provided with roller.
Preferably, described measurement window is magnesium fluoride window.
Preferably, the first catoptron and the second catoptron are hierarchy, and described hierarchy comprises: magnesium fluoride layer, be plated in the argent inside described magnesium fluoride layer and utilize high temperature resistant binder to be bonded in ZrO inside silver-plated magnesium fluoride layer
2layer; Wherein, described inner side refers to towards the side of described survey room.
According to another aspect of the present invention, provide the non-contact measurement apparatus of material surface temperature under a kind of rugged surroundings, comprising: optical reflection mirror unit, measurement window and two colorimetric pyrometer; The spout of detected materials and high enthalpy high velocity air is arranged in survey room, the axis of described spout is parallel with described measurement window, distance between described spout place plane and described measurement window center line is axial distance, the center of described detected materials with described spout coaxial and distance for heat distance; Wherein,
Described measurement window is arranged on the bulkhead of described survey room, and described pair of colorimetric pyrometer is arranged on the outside of described measurement window;
Described optical reflection mirror unit to be arranged in survey room and movably between described detected materials and described measurement window, for by the infrared spectrum on described detected materials surface from described measurement window vertical exit to survey room; Comprise: the first catoptron and the second catoptron;
Reflecting surface and the described spout of the first catoptron are in same plane, and the distance between the center of the first catoptron and described spout is the first distance;
In acute angle between the reflecting surface of the second catoptron and the reflecting surface of the first catoptron.
Preferably, heat apart from equal described in the first Distance geometry, the angle between the reflecting surface of the second catoptron and the reflecting surface of the first catoptron is 22.5 °.
Preferably, described optical reflection mirror unit comprises further:
Mirror support, for removably fixing the first catoptron and the second catoptron and driving its direction along described spout and the first catoptron line to move to-and-fro movement.
Preferably, described optical reflection mirror unit comprises further:
Mirror support, for removably fixing the first catoptron and the second catoptron and driving its direction along described spout and the first catoptron line to move to-and-fro movement, comprising:
First carrier unit, for removably fixing the first catoptron and driving the first mirror motion;
Second carrier unit, for removably fixing the second catoptron, driving the second mirror motion and adjusting the acute angle between the second mirror reflection surface and the first mirror reflection surface.
Preferably, non-contact measurement apparatus according to the present invention comprises further: be arranged on the slide rail in described survey room, and described mirror support can move back and forth on described slide rail.
Preferably, mirror support is provided with roller.
Preferably, described measurement window is magnesium fluoride window.
Preferably, the first catoptron and the second catoptron are hierarchy, and described hierarchy comprises: magnesium fluoride layer, be plated in the argent inside described magnesium fluoride layer and utilize high temperature resistant binder to be bonded in ZrO inside silver-plated magnesium fluoride layer
2layer; Wherein, described inner side refers to towards the side of described survey room.
The contactless measurement of material surface temperature under the rugged surroundings of the embodiment of the present invention, comprising: make the axis of high enthalpy high velocity air spout parallel with measurement window, and the distance obtained between spout place plane and measurement window center line is axial distance; Make the center of detected materials coaxial with spout, obtain the heating distance between the center of detected materials and spout; Make the reflecting surface of the first catoptron and spout be in same plane, obtain the first distance between the first mirror center and spout; The second distance between the second mirror center and the first mirror center is regulated based on axial distance, according to the acute angle between heating Distance geometry first distance adjustment second mirror reflection surface and the first mirror reflection surface, make from the infrared spectrum of the second catoptron outgoing be positioned at same plane from the infrared spectrum of detected materials emission center and from measurement window vertical exit; Utilize the two colorimetric pyrometers be arranged on outside measurement window to gather the infrared spectrum of outgoing, determine the surface temperature of detected materials.Contactless measurement of the present invention, by the optical reflection mirror unit be arranged in survey room, the reflection infrared spectrum on detected materials surface under rugged surroundings in survey room is transferred in the conventional environment outside survey room, the non-cpntact measurement to detected materials surface temperature under rugged surroundings can be realized, when heating distance and changing, without the need to adjusting the position of measurement window and two colorimetric pyrometer, the position of direct mobile optical mirror unit can ensure that the Exit positions of infrared spectrum is constant.In addition, by optical reflection mirror unit the reflection infrared spectrum on detected materials surface transferred in the conventional environment outside survey room, not by the impact of the rugged surroundings such as high temperature, electromagnetic field of high frequency, also can not to environmental effects, cost is low, applied range, and the luminous flux loss percentage of catoptron is little, by calibration experiment and recoverable, therefore measuring accuracy is high; By adopting two colorimetric pyrometer, can the accurate the surface temperature determining detected materials without the need to the emissivity obtaining detected materials surface, measuring accuracy is high.
Present invention also offers the non-contact measurement apparatus of material surface temperature under a kind of rugged surroundings, this non-contact measurement apparatus has all beneficial effects of said method.
Accompanying drawing explanation
Fig. 1 is the device schematic diagram of contactless measurement of the present invention.
Fig. 2 is the thermometric light path schematic diagram of non-contact measurement apparatus of the present invention.
Fig. 3 is the schematic diagram of the different heating distance of the non-contact measurement apparatus of the embodiment of the present invention.
Fig. 4 is the thermometric light path schematic diagram of the non-contact measurement apparatus different heating distance of the embodiment of the present invention.
Fig. 5 is the hierarchy schematic diagram of the catoptron of the embodiment of the present invention.
Fig. 6 is the transmittance curve of catoptron to infrared spectrum of the embodiment of the present invention.
Fig. 7 is that the magnesium fluoride window of the embodiment of the present invention is to the transmittance curve of infrared spectrum.
Fig. 8 is the process flow diagram of contactless measurement of the present invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearly understand, enumerate preferred embodiment referring to accompanying drawing, the present invention is described in more detail.But it should be noted that, the many details listed in instructions are only used to make reader to have a thorough understanding, even if do not have these specific details also can realize these aspects of the present invention to one or more aspect of the present invention.
The reflection infrared spectrum on detected materials surface under rugged surroundings in survey room is transferred in the conventional environment outside survey room by the optical reflection mirror unit be arranged in survey room by the present invention, the non-cpntact measurement to detected materials surface temperature under rugged surroundings can be realized, when heating distance and changing, without the need to adjusting the position of measurement window and two colorimetric pyrometer, the position of direct mobile optical mirror unit can ensure that the Exit positions of infrared spectrum is constant.In addition, by optical reflection mirror unit the reflection infrared spectrum on detected materials surface transferred in the conventional environment outside survey room, not by the impact of the rugged surroundings such as high temperature, electromagnetic field of high frequency, also can not to environmental effects, cost is low, applied range, and the luminous flux loss percentage of catoptron is little, by calibration experiment and recoverable, therefore measuring accuracy is high; By adopting two colorimetric pyrometer, the emissivity without the need to obtaining detected materials surface can determine the surface temperature of detected materials exactly, and measuring accuracy is high.
The technical scheme of the embodiment of the present invention is described in detail below in conjunction with accompanying drawing.In the present invention, under rugged surroundings, the contactless measurement of material surface temperature adopts device as shown in Figure 1, comprising: optical reflection mirror unit 3, measurement window 4 and two colorimetric pyrometer 5.
In prior art, the general severe Airflow Environment such as high temperature, plasma adopted in the actual Service Environment of survey room simulation detected materials, carries out ground experiment research.The spout of high enthalpy high velocity air is set in survey room, for heating detected materials.In the rugged surroundings such as high temperature, electromagnetic field of high frequency, detected materials surface is subject to the direct impact of high speed high-enthalpy flow, makes the temperature that the environment in survey room around detected materials reaches very high.In addition, high-enthalpy flow material issues raw dissociation at very strong high-frequency electromagnetic field action, form plasma environment, can there is the physical-chemical reactions such as violent Adsorption and desorption, oxidation and catalysis on detected materials surface in gas phase dissociated substance, these rugged surroundings bring very large challenge all to the accurate measurement of detected materials surface temperature.Therefore, following technical conditions must be met for measuring the device of material surface temperature under rugged surroundings: (1) device materials is high temperature resistant, anti-yaw damper; (2) electromagnetism interference; (3) Airflow Environment flow field is not disturbed; (4) there is chemical stability, not with environment generation chemical reaction.
High enthalpy high velocity air spout 1 and detected materials 2 are arranged in survey room, and detected materials 2 is placed on the axis of high enthalpy high velocity air spout 1, the high enthalpy high velocity air heating detected materials 2 sprayed by spout 1.The central coaxial of spout 1 and detected materials 2, the distance between the center of detected materials 2 and spout 1, namely heats distance, can adjust according to the actual Service Environment of detected materials.Measurement window 4 is arranged on the bulkhead of survey room, the axis of spout 1 is parallel with measurement window 4, the distance of spout 1 place plane and measurement window 4 center line is axial distance, and two colorimetric pyrometers 5 are arranged on the outside of measurement window 4, and the position of measurement window 4 and two colorimetric pyrometer 5 immobilizes.
Optical reflection mirror unit 3 to be arranged in survey room and movably between measurement window 4 and detected materials 2, for by the reflection infrared spectrum on detected materials in survey room 2 surface in the conventional environment outside survey room.When heating distance and changing, without the need to adjusting the position of measurement window and two colorimetric pyrometer, the position of direct mobile optical mirror unit can realize the non-cpntact measurement to detected materials surface temperature under rugged surroundings, not by the impact of the rugged surroundings such as high temperature, electromagnetic field of high frequency, also can not to environmental effects.
In optical reflection mirror unit 3, the quantity of catoptron can be determined according to actual conditions, and according to a preferred embodiment of the invention, optical reflection mirror unit 3 comprises the first catoptron 31 and the second catoptron 32.Reflecting surface and the spout 1 of the first catoptron 31 are in same plane, and the distance between the center of the first catoptron 31 and spout 1 is the first distance.In acute angle between the reflecting surface of the second catoptron 32 and the reflecting surface of the first catoptron 31, distance between the center of the second catoptron 32 and the center of the first catoptron 31 is second distance, and the size of the first Distance geometry second distance and the acute angle between the reflecting surface of the second catoptron 32 and the reflecting surface of the first catoptron 31 all can adjust according to actual conditions.The infrared spectrum on detected materials 2 surface is irradiated on the second catoptron 32 after the first catoptron 31 reflects.After the infrared spectrum of the first catoptron 31 reflection is reflected by the second catoptron 32, along the direction outgoing perpendicular to measurement window 4.The infrared spectrum reflected from the second catoptron 32 is parallel with the reflecting surface of the first catoptron 31, and with the infrared spectrum incided on the first catoptron 31 in same plane, second distance between the center of the second catoptron 32 and the center of the first catoptron 31 is larger, the infrared spectrum reflected from the second catoptron 32 and the distance of the first catoptron 31 larger.In order to enable the infrared spectrum reflected from the second catoptron 32 perpendicular to measurement window 4 outgoing, second distance is equal with axial distance.Fig. 2 shows the thermometric light path schematic diagram of non-contact measurement apparatus of the present invention, in figure, and l
irepresent heating distance, l
i' representing the first distance, d represents second distance.
The Service Environment of different detected materials is different, heating distance l
ialso may be different.When adopting non-contact measurement apparatus of the present invention to measure the surface temperature of material under rugged surroundings, as heating distance l
iduring change, by changing the position of optical reflection mirror unit 3, such as along the position of the direction mobile optical mirror unit 3 perpendicular to measurement window, the infrared spectrum reflected through optical reflection mirror unit 3 can be made all the time from measurement window 4 vertical exit to survey room, avoid the position changing measurement window 4 and/or two colorimetric pyrometer 5 because of the change of heating distance, convenient succinct.
The first distance l between the center of the first catoptron 31 and spout 1
i' and heating distance l between the center of detected materials 2 and spout 1
ican be equal or unequal.
As the first distance l
i' with heating distance l
itime unequal, in order to ensure that the infrared spectrum reflected from the second catoptron 32 can perpendicular to measurement window 4 outgoing, if heating distance changes, taking a step forward of step S3 comprises: if heating distance increases, the displacement then moving the first catoptron 31, first catoptron 31 along the line direction at the center of spout 1 and the first catoptron 31 is equal with the recruitment of heating distance; According to the displacement of the first catoptron, the line direction along the center of spout 1 and the first catoptron 31 is moved the second catoptron 32 and adjusts the acute angle between the reflecting surface of the second catoptron 32 and the reflecting surface of the first catoptron 31.If described heating distance reduces, then the first catoptron is moved in the direction along the first mirror center and described spout line, and the displacement of the first catoptron is equal with the decrease of described heating distance; According to the displacement of the first catoptron, the direction along described spout and the first mirror center line is moved the second catoptron and adjusts the acute angle between the second mirror reflection surface and the first mirror reflection surface.As the first distance l
i' with heating distance l
itime unequal, in order to enable the infrared spectrum reflected from the second catoptron 32 perpendicular to measurement window 4 outgoing, the displacement of the second catoptron 32 and the displacement of the first catoptron 31 unequal, and the determination of the second catoptron 32 displacement is complicated, make measuring process loaded down with trivial details, be unfavorable for the service efficiency and the measuring accuracy that improve device.Simultaneously, the non-contact measurement apparatus of this structure is adopted also to need the acute angle regulated further between the reflecting surface of the second catoptron 32 and the reflecting surface of the first catoptron 31, the service efficiency of device is not only made to reduce, in the process regulated, also the easy variation due to position or angle produces new measuring error, reduces the degree of accuracy of measurement result.
As the first distance l
i' with heating distance l
itime equal, in order to ensure that the infrared spectrum reflected from the second catoptron 32 can perpendicular to measurement window 4 outgoing, the angle between the reflecting surface of the second catoptron 32 and the reflecting surface of the first catoptron 31 is 22.5 °.Preferably, if heating distance changes, taking a step forward of step S3 comprises: if heating distance increases, center line connecting direction then along spout 1 and the first catoptron 31 moves the first catoptron 31 and the second catoptron 32, the displacement of the first catoptron 31 and the second catoptron 32 is equal with the recruitment of heating distance, and the relative position of the first catoptron 31 and the second catoptron 32 remains unchanged; If heating distance reduces, then move the first catoptron 31 and the second catoptron 32 along the center of the first catoptron 31 and the direction of spout 1 line, the displacement of the first catoptron 31 and the second catoptron 32 is equal with the decrease of heating distance, and the relative position of the first catoptron 31 and the second catoptron 32 remains unchanged.Adopt the non-contact measurement apparatus of this structure, when heating distance and changing, the displacement of the second catoptron 32 is equal with the displacement of the first catoptron 31, without the need to finding and determine the displacement of the second catoptron 32 after the displacement determining the first catoptron 31 and position again, simplify device using method, improve service efficiency and the measuring accuracy of device.In the present embodiment, optical reflection mirror unit 3 can further include: mirror support 33, for removably fixing the first catoptron 31 and the second catoptron 32 and driving its line direction along spout 1 and the first catoptron 31 center to move to-and-fro movement.When heating distance and changing, directly according to the heating distance mobile mirror support after change, simple and effective.Fig. 3 shows the schematic diagram of the different heating distance of the non-contact measurement apparatus of the present embodiment, Fig. 4 shows the thermometric light path schematic diagram of the non-contact measurement apparatus different heating distance of the present embodiment, in figure, 2a represents the position not changing sample to be tested 2 when heating distance, and 3a represents the position not changing the first catoptron 31 and the second catoptron 32 when heating distance; 2b represents the position changing sample to be tested 2 when heating distance for the first time, and 3b represents that first time changes the position of the first catoptron 31 and the second catoptron 32 when heating distance; 2c represents the position changing sample to be tested 2 when heating distance for the second time, and 3c represents that second time changes the position of the first catoptron 31 and the second catoptron 32 when heating distance.
In the present invention, may further include before step S1: optical reflection mirror unit is arranged on mirror support; Step S2 is specially: based on axial distance, by the second distance between the center of mobile mirror bracket adjustment second catoptron 32 and the center of the first catoptron 31; According to heating Distance geometry first distance, regulate acute angle between the reflecting surface of the second catoptron 32 and the reflecting surface of the first catoptron 31 by controlling mirror support, make from the infrared spectrum of the second catoptron 32 outgoing be positioned at same plane from the infrared spectrum of detected materials 2 emission center and from measurement window 4 vertical exit.
Mirror support involved in the present invention can move in survey room, such as, mirror support can be provided with roller, in survey room, moved and then adjust the position of the first catoptron 31 and the second catoptron 32 by roller, certainly, also slide rail can be set in survey room, by mobile adjustment first catoptron 31 of mirror support on slide rail and the position of the second catoptron 32.
On the one hand, the rugged surroundings such as the inner side of measurement window 4 and the high temperature in survey room, electromagnetic field of high frequency directly contact, therefore must the impact of the rugged surroundings such as withstand high temperatures, electromagnetic field of high frequency, simultaneously not to environmental effects; On the other hand, the infrared spectrum on detected materials 1 surface is from measurement window 4 outgoing after the reflection of optical reflection mirror unit, and the two colorimetric pyrometers 5 be then arranged on outside measurement window 4 gather, and therefore, the transmitance of measurement window 4 is sufficiently high.According to a preferred embodiment of the invention, the measurement window 4 magnesium fluoride window that is greater than 95% for transmitance.Fig. 7 shows the magnesium fluoride window of the present embodiment to the transmittance curve of infrared spectrum.
Preferably, the first catoptron and the second catoptron are hierarchy, see Fig. 5, comprising: magnesium fluoride layer 6, be plated in the argent 7 inside magnesium fluoride layer and utilize high temperature resistant binder 8 to be bonded in ZrO inside silver-plated magnesium fluoride layer 6
2layer 9.Wherein, inner side refers to towards the side of survey room.The catoptron that Fig. 6 shows the present embodiment to infrared spectrum transmittance curve.
In order to solve the surface temperature of material under rugged surroundings, the invention provides the embodiment of the contactless measurement of material surface temperature under a kind of rugged surroundings, as shown in Figure 8.
According to embodiments of the invention, the flow process of contactless measurement originates in step S1.High enthalpy high velocity air spout 1 and detected materials 2 are arranged in survey room, and detected materials 2 is placed on the axis of high enthalpy high velocity air spout 1, the high enthalpy high velocity air heating detected materials 2 sprayed by spout 1.The central coaxial of spout 1 and detected materials 2, the distance between the center of detected materials 2 and spout 1, namely heats distance, can adjust according to the actual Service Environment of detected materials.Measurement window 4 is arranged on the bulkhead of survey room, the axis of spout 1 is parallel with measurement window 4, the distance of spout 1 place plane and measurement window 4 center line is axial distance, and two colorimetric pyrometers 5 are arranged on the outside of measurement window 4, and the position of measurement window 4 and two colorimetric pyrometer 5 immobilizes.In step S1, obtain the heating distance between the axial distance between measurement window 4 and spout 1, the center of detected materials 2 and spout 1, the first distance between the center of the first catoptron 31 and spout 1.
S2, regulate second distance between the center of the second catoptron 32 and the center of the first catoptron 31 based on axial distance, according to the acute angle between the reflecting surface of heating Distance geometry first distance adjustment second catoptron 32 and the reflecting surface of the first catoptron 31, make from the infrared spectrum of the second catoptron 32 outgoing be positioned at same plane from the infrared spectrum of the emission center of detected materials 2 and from measurement window 4 vertical exit.
First catoptron 31 and the second catoptron 32 to be arranged in survey room and movably between measurement window 4 and detected materials 2, for by the reflection infrared spectrum on detected materials in survey room 2 surface in the conventional environment outside survey room.When heating distance and changing, without the need to adjusting the position of measurement window and two colorimetric pyrometer, the position of direct movement first catoptron 31 and the second catoptron 32 can realize the non-cpntact measurement to detected materials surface temperature under rugged surroundings, not by the impact of the rugged surroundings such as high temperature, electromagnetic field of high frequency, also can not to environmental effects.
Reflecting surface and the spout 1 of the first catoptron 31 are in same plane, and the distance between the center of the first catoptron 31 and spout 1 is the first distance.In acute angle between the reflecting surface of the second catoptron 32 and the reflecting surface of the first catoptron 31, distance between the center of the second catoptron 32 and the center of the first catoptron 31 is second distance, and the size of the first Distance geometry second distance and the acute angle between the reflecting surface of the second catoptron 32 and the reflecting surface of the first catoptron 31 all can adjust according to actual conditions.The infrared spectrum on detected materials 2 surface is irradiated on the second catoptron 32 after the first catoptron 31 reflects.After the infrared spectrum of the first catoptron 31 reflection is reflected by the second catoptron 32, along the direction outgoing perpendicular to measurement window 4.The infrared spectrum reflected from the second catoptron 32 is parallel with the reflecting surface of the first catoptron 31, and with the infrared spectrum incided on the first catoptron 31 in same plane, second distance between the center of the second catoptron 32 and the center of the first catoptron 31 is larger, the infrared spectrum reflected from the second catoptron 32 and the distance of the first catoptron 31 larger.In order to enable the infrared spectrum reflected from the second catoptron 32 perpendicular to measurement window 4 outgoing, second distance is equal with axial distance.Fig. 2 shows the thermometric light path schematic diagram of non-contact measurement apparatus of the present invention, in figure, and l
irepresent heating distance, l
i' representing the first distance, d represents second distance.
The Service Environment of different detected materials is different, heating distance l
ialso may be different.When adopting non-contact measurement apparatus of the present invention to measure the surface temperature of material under rugged surroundings, as heating distance l
iduring change, by changing the position of optical reflection mirror unit 3, such as along the position of the direction mobile optical mirror unit 3 perpendicular to measurement window, the infrared spectrum reflected through optical reflection mirror unit 3 can be made all the time from measurement window 4 vertical exit to survey room, avoid the position changing measurement window 4 and/or two colorimetric pyrometer 5 because of the change of heating distance, convenient succinct.
The first distance l between the center of the first catoptron 31 and spout 1
i' and heating distance l between the center of detected materials 2 and spout 1
ican be equal or unequal.
As the first distance l
i' with heating distance l
itime unequal, in order to ensure that the infrared spectrum reflected from the second catoptron 32 can perpendicular to measurement window 4 outgoing, if heating distance changes, the position of the first catoptron 31 and the second catoptron 32 can be adjusted in the following manner: if heating distance increases, the displacement then moving the first catoptron 31, first catoptron 31 along the line direction at the center of spout 1 and the first catoptron 31 is equal with the recruitment of heating distance; According to the displacement of the first catoptron, the line direction along the center of spout 1 and the first catoptron 31 is moved the second catoptron 32 and adjusts the acute angle between the reflecting surface of the second catoptron 32 and the reflecting surface of the first catoptron 31.If described heating distance reduces, then the first catoptron is moved in the direction along the first mirror center and described spout line, and the displacement of the first catoptron is equal with the decrease of described heating distance; According to the displacement of the first catoptron, the direction along described spout and the first mirror center line is moved the second catoptron and adjusts the acute angle between the second mirror reflection surface and the first mirror reflection surface.In the present embodiment, optical reflection mirror unit 3 can further include: mirror support, for removably fixing the first catoptron 31 and the second catoptron 32 and driving its line direction along described spout 1 and the first catoptron 31 center to move to-and-fro movement, mirror support comprises: the first carrier unit (not shown) and the second carrier unit (not shown).First carrier unit, for removably fixing the first catoptron 31 and driving the first catoptron 31 to move; Second carrier unit, for removably fixing the second catoptron 32, driving the second catoptron 32 to move and adjust the acute angle between the reflecting surface of the second catoptron 32 and the reflecting surface of the first catoptron 31.Adopt the non-contact measurement apparatus of this structure, in order to enable the infrared spectrum reflected from the second catoptron 32 perpendicular to measurement window 4 outgoing, the displacement of the second catoptron 32 and the displacement of the first catoptron 31 unequal, and the determination of the second catoptron 32 displacement is complicated, make measuring process loaded down with trivial details, be unfavorable for the service efficiency and the measuring accuracy that improve device.Simultaneously, the non-contact measurement apparatus of this structure is adopted also to need the acute angle regulated further between the reflecting surface of the second catoptron 32 and the reflecting surface of the first catoptron 31, the service efficiency of device is not only made to reduce, in the process regulated, also the easy variation due to position or angle produces new measuring error, reduces the degree of accuracy of measurement result.
As the first distance l
i' with heating distance l
itime equal, in order to ensure that the infrared spectrum reflected from the second catoptron 32 can perpendicular to measurement window 4 outgoing, the angle between the reflecting surface of the second catoptron 32 and the reflecting surface of the first catoptron 31 is 22.5 °.If heating distance changes, the position of the first catoptron 31 and the second catoptron 32 can be adjusted in the following manner: if heating distance increases, center line connecting direction then along spout 1 and the first catoptron 31 moves the first catoptron 31 and the second catoptron 32, the displacement of the first catoptron 31 and the second catoptron 32 is equal with the recruitment of heating distance, and the relative position of the first catoptron 31 and the second catoptron 32 remains unchanged; If heating distance reduces, then move the first catoptron 31 and the second catoptron 32 along the center of the first catoptron 31 and the direction of spout 1 line, the displacement of the first catoptron 31 and the second catoptron 32 is equal with the decrease of heating distance, and the relative position of the first catoptron 31 and the second catoptron 32 remains unchanged.Adopt the non-contact measurement apparatus of this structure, when heating distance and changing, the displacement of the second catoptron 32 is equal with the displacement of the first catoptron 31, without the need to finding and determine the displacement of the second catoptron 32 after the displacement determining the first catoptron 31 and position again, simplify device using method, improve service efficiency and the measuring accuracy of device.In the present embodiment, optical reflection mirror unit 3 can further include: mirror support 33, for removably fixing the first catoptron 31 and the second catoptron 32 and driving its line direction along spout 1 and the first catoptron 31 center to move to-and-fro movement.When heating distance and changing, directly according to the heating distance mobile mirror support after change, simple and effective.Fig. 3 shows the schematic diagram of the different heating distance of the non-contact measurement apparatus of the present embodiment, Fig. 4 shows the thermometric light path schematic diagram of the non-contact measurement apparatus different heating distance of the present embodiment, in figure, 2a represents the position not changing sample to be tested 2 when heating distance, and 3a represents the position not changing the first catoptron 31 and the second catoptron 32 when heating distance; 2b represents the position changing sample to be tested 2 when heating distance for the first time, and 3b represents that first time changes the position of the first catoptron 31 and the second catoptron 32 when heating distance; 2c represents the position changing sample to be tested 2 when heating distance for the second time, and 3c represents that second time changes the position of the first catoptron 31 and the second catoptron 32 when heating distance.
Mirror support involved in the present invention can move in survey room, such as, mirror support can be provided with roller, in survey room, moved and then adjust the position of the first catoptron 31 and the second catoptron 32 by roller, certainly, also slide rail can be set in survey room, by mobile adjustment first catoptron 31 of mirror support on slide rail and the position of the second catoptron 32.
S3, the utilization two colorimetric pyrometers be arranged on outside measurement window gather the infrared spectrum of outgoing, determine the surface temperature of detected materials.
It is λ that two colorimetric pyrometer 5 can gather infrared spectrum medium wavelength
1and λ
2the emittance of two light waves, and the emittance ratio of two wavelength is relevant to the surface temperature of detected materials 2, is therefore obtained the surface temperature of detected materials 2 by two colorimetric pyrometer 5.Obtain the principle of detected materials surface temperature by two colorimetric pyrometer 5 and method is general knowledge known in this field, repeat no more herein.
The emittance of different wave length is different at the transmission coefficient of propagation path of light, thus produces error to the measurement result of two colorimetric pyrometer 5.According to a preferred embodiment of the invention, comprise further after step s 3: the temperature-measuring results of two colorimetric pyrometer 5 is revised.
Preferably, within the scope of 500 DEG C ~ 1000 DEG C, calibration experiment is carried out.Experimental group is utilize the non-contact temperature measuring device based on reflected light path of the present invention, and control group is the temperature utilizing two colorimetric pyrometer 5 directly to measure sample same position, and experiments of measuring is 10
-1carry out in the vacuum chamber of Pa, utilize high-power semiconductor laser to heat material surface.Calibration experiment test result is as shown in table 1 below.
Table 1 calibration experiment temperature test data
As seen from the above table, suppose that the temperature that control group is measured is accurate temperature, its temperature value is about 1.021 times of experimental group probe temperature.Therefore, it is 1.021 as correction coefficient that the present invention gets scale-up factor, that is:
T＝1.021T
m
Wherein, T
mfor the surface temperature of the detected materials that contactless measurement according to the present invention directly obtains, T is the surface temperature of revised detected materials.
On the one hand, the rugged surroundings such as the inner side of measurement window 4 and the high temperature in survey room, electromagnetic field of high frequency directly contact, therefore must the impact of the rugged surroundings such as withstand high temperatures, electromagnetic field of high frequency, simultaneously not to environmental effects; On the other hand, the infrared spectrum on detected materials 1 surface is from measurement window 4 outgoing after the reflection of optical reflection mirror unit, and the two colorimetric pyrometers 5 be then arranged on outside measurement window 4 gather, and therefore, the transmitance of measurement window 4 is sufficiently high.According to a preferred embodiment of the invention, the measurement window 4 magnesium fluoride window that is greater than 95% for transmitance.Fig. 7 shows the magnesium fluoride window of the present embodiment to the transmittance curve of infrared spectrum.
Preferably, the first catoptron and the second catoptron are hierarchy, see Fig. 5, comprising: magnesium fluoride layer 6, be plated in the argent 7 inside magnesium fluoride layer and utilize high temperature resistant binder 8 to be bonded in ZrO inside silver-plated magnesium fluoride layer 6
2layer 9.Wherein, inner side refers to towards the side of survey room.Magnesium fluoride layer 6 can select the magnesium fluoride material identical with bulkhead magnesium fluoride windows to form.Following method can be adopted to process according to the first catoptron of the present invention and the second catoptron: to utilize the method for magnetron sputtering to plate the argent 7 of one deck even compact to magnesium fluoride layer 6, then utilize high temperature resistant binder 8 by ZrO
2layer 9 is bonding firmly with the magnesium fluoride layer 6 plating argent 7.Fig. 6 shows the transmittance curve of catoptron to infrared spectrum of the present embodiment, and probe temperature is 1000 DEG C, and the test duration is 60min.The characteristic that reflector mount according to the present invention is high temperature resistant, physicochemical property are stable, can guarantee ablation not to occur in rugged surroundings, does not react with environment.
The reflection infrared spectrum on detected materials surface under rugged surroundings in survey room is transferred in the conventional environment outside survey room by the optical reflection mirror unit be arranged in survey room by the present invention, the non-cpntact measurement to detected materials surface temperature under rugged surroundings can be realized, when heating distance and changing, without the need to adjusting the position of measurement window and two colorimetric pyrometer, the position of direct mobile optical mirror unit can ensure that the Exit positions of infrared spectrum is constant.In addition, by optical reflection mirror unit the reflection infrared spectrum on detected materials surface transferred in the conventional environment outside survey room, not by the impact of the rugged surroundings such as high temperature, electromagnetic field of high frequency, also can not to environmental effects, cost is low, applied range, and the luminous flux loss percentage of catoptron is little, by calibration experiment and recoverable, therefore measuring accuracy is high; By adopting two colorimetric pyrometer, the emissivity without the need to obtaining detected materials surface can determine the surface temperature of detected materials exactly, and measuring accuracy is high.
Below in conjunction with embodiment, the contactless measurement according to material surface temperature under rugged surroundings of the present invention is described.
Embodiment one
Selection high-power semiconductor laser is heating source, ZrB
2-SiC is detected materials, and detected materials is of a size of φ 20 × 2mm, and laser output power is 100W, passes into high-purity O in vacuum environment
2and Ar, environmental pressure is 100Pa.Utilize radio-frequency power supply to gas discharge, discharge power is 500W.The temperature of two identical two colorimetric pyrometers to identical point position, detected materials surface is used to measure during experiment, experimental group is tested for utilizing non-contact measurement apparatus of the present invention, control group is the temperature utilizing identical two colorimetric pyrometers directly to measure detected materials same position, measure through the high magnesium fluoride window thoroughly of bulkhead, ignore the loss because transmitance and environment cause luminous flux.After tested, control group probe temperature is 1005 DEG C, and experimental group probe temperature is 992 DEG C, and after error correction, temperature is 1012 DEG C, and error is 0.69%.
Embodiment two
Select propane C
3h
8combustion flame is heating source, and Inconel718 nickel base superalloy is detected materials, and detected materials is of a size of φ 24 × 2mm, and flame gun passes into high-purity O
2and C
3h
8, O
2and C
3h
8throughput ratio be 11:8, the distance on jet opening distance detected materials surface is 100mm, is 700kW/m through measuring the hot-fluid on detected materials surface
2.The temperature of two identical two colorimetric pyrometers to identical point position, high-temperature material surface is used to measure during experiment, experimental group is tested for utilizing non-contact measurement apparatus of the present invention, and control group is the temperature utilizing identical two colorimetric pyrometers directly to measure detected materials surface same position.After tested, control group probe temperature is 1108 DEG C, and experimental group probe temperature is 1074 DEG C, and after error correction, temperature is 1096 DEG C, and error is 1.08%.
Embodiment three
Selection HF induction heating apparatus is heating source, and graphite is detected materials, and detected materials is of a size of φ 10 × 2mm, and environment is atmospheric environment.High-frequency induction equipment output current is 600A.The temperature of two identical two colorimetric pyrometers to identical point position, high-temperature material surface is used to measure during experiment, experimental group is for utilizing the reflective temperature measuring equipment test of noncontact of the present invention, control group is the temperature utilizing identical two colorimetric pyrometers directly to measure detected materials surface same position, control group probe temperature is 1785 DEG C, experimental group probe temperature is 1768 DEG C, after error correction, temperature is 1804 DEG C, and error is 1.06%.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. the contactless measurement of material surface temperature under rugged surroundings, comprising:
S1, make the axis of high enthalpy high velocity air spout parallel with measurement window, obtain the axial distance between described spout place plane and described measurement window center line; Make the center of detected materials coaxial with described spout, obtain the heating distance between the center of described detected materials and described spout; Make the reflecting surface of the first catoptron and described spout be in same plane, obtain the first distance between the first mirror center and described spout;
S2, regulate the second distance between the second mirror center and the first mirror center based on described axial distance, according to the acute angle between described heating Distance geometry first distance adjustment second mirror reflection surface and the first mirror reflection surface, make from the infrared spectrum of the second catoptron outgoing be positioned at same plane from the infrared spectrum of described detected materials emission center and from described measurement window vertical exit;
S3, the utilization two colorimetric pyrometers be arranged on outside described measurement window gather the infrared spectrum of outgoing, determine the surface temperature of described detected materials;
Wherein, described detected materials and described spout are arranged in survey room, and described measurement window is arranged on the bulkhead of described survey room, and the first catoptron and the second catoptron are arranged in survey room, and between described detected materials and described measurement window.
2. contactless measurement as claimed in claim 1, wherein, described heating Distance geometry first is apart from equal, and the angle between the reflecting surface of the second catoptron and the reflecting surface of the first catoptron is 22.5 °.
3. contactless measurement as claimed in claim 2, wherein, if heating distance changes, then taking a step forward of step S3 comprises:
If described heating distance increases, the first catoptron and the second catoptron are moved in direction then along described spout and the first mirror center line, the displacement of the first catoptron and the second catoptron is equal with the recruitment of described heating distance, and the relative position of the first catoptron and the second catoptron remains unchanged;
If described heating distance reduces, the first catoptron and the second catoptron are moved in direction then along the first mirror center and described spout line, the displacement of the first catoptron and the second catoptron is equal with the decrease of described heating distance, and the relative position of the first catoptron and the second catoptron remains unchanged.
4. contactless measurement as claimed in claim 1, wherein, if heating distance changes, then taking a step forward of step S3 comprises:
If described heating distance increases, then the first catoptron is moved in the direction along described spout and the first mirror center line, and the displacement of the first catoptron is equal with the recruitment of described heating distance; According to the displacement of the first catoptron, the direction along described spout and the first mirror center line is moved the second catoptron and adjusts the acute angle between the second mirror reflection surface and the first mirror reflection surface;
If described heating distance reduces, then the first catoptron is moved in the direction along the first mirror center and described spout line, and the displacement of the first catoptron is equal with the decrease of described heating distance; According to the displacement of the first catoptron, the direction along described spout and the first mirror center line is moved the second catoptron and adjusts the acute angle between the second mirror reflection surface and the first mirror reflection surface.
5. the contactless measurement as described in as arbitrary in claim 1-4, wherein, first catoptron and the second catoptron are hierarchy, and described hierarchy comprises: magnesium fluoride layer, be plated in the argent inside described magnesium fluoride layer and utilize high temperature resistant binder to be bonded in ZrO inside silver-plated magnesium fluoride layer
2layer; Wherein, described inner side refers to towards the side of described survey room.
6. the non-contact measurement apparatus of material surface temperature under rugged surroundings, comprising: optical reflection mirror unit, measurement window and two colorimetric pyrometer; The spout of detected materials and high enthalpy high velocity air is arranged in survey room, the axis of described spout is parallel with described measurement window, distance between described spout place plane and described measurement window center line is axial distance, the center of described detected materials with described spout coaxial and distance for heat distance; Wherein,
Described measurement window is arranged on the bulkhead of described survey room, and described pair of colorimetric pyrometer is arranged on the outside of described measurement window;
Described optical reflection mirror unit to be arranged in survey room and movably between described detected materials and described measurement window, for by the infrared spectrum on described detected materials surface from described measurement window vertical exit to survey room; Comprise: the first catoptron and the second catoptron;
Reflecting surface and the described spout of the first catoptron are in same plane, and the distance between the center of the first catoptron and described spout is the first distance;
In acute angle between the reflecting surface of the second catoptron and the reflecting surface of the first catoptron.
7. non-contact measurement apparatus as claimed in claim 6, wherein, heat apart from equal described in the first Distance geometry, the angle between the reflecting surface of the second catoptron and the reflecting surface of the first catoptron is 22.5 °.
8. non-contact measurement apparatus as claimed in claim 7, wherein, described optical reflection mirror unit comprises further:
Mirror support, for removably fixing the first catoptron and the second catoptron and driving its direction along described spout and the first catoptron line to move to-and-fro movement.
9. non-contact measurement apparatus as claimed in claim 6, wherein, described optical reflection mirror unit comprises further:
Mirror support, for removably fixing the first catoptron and the second catoptron and driving its direction along described spout and the first catoptron line to move to-and-fro movement, comprising:
First carrier unit, for removably fixing the first catoptron and driving the first mirror motion;
Second carrier unit, for removably fixing the second catoptron, driving the second mirror motion and adjusting the acute angle between the second mirror reflection surface and the first mirror reflection surface.
10. the non-contact measurement apparatus as described in as arbitrary in claim 6-9, wherein, first catoptron and the second catoptron are hierarchy, and described hierarchy comprises: magnesium fluoride layer, be plated in the argent inside described magnesium fluoride layer and utilize high temperature resistant binder to be bonded in ZrO inside silver-plated magnesium fluoride layer
2layer; Wherein, described inner side refers to towards the side of described survey room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510607357.0A CN105222917B (en) | 2015-09-22 | 2015-09-22 | The contactless measurement and device of material surface temperature under a kind of adverse circumstances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510607357.0A CN105222917B (en) | 2015-09-22 | 2015-09-22 | The contactless measurement and device of material surface temperature under a kind of adverse circumstances |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105222917A true CN105222917A (en) | 2016-01-06 |
| CN105222917B CN105222917B (en) | 2018-03-27 |
Family
ID=54991996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510607357.0A Active CN105222917B (en) | 2015-09-22 | 2015-09-22 | The contactless measurement and device of material surface temperature under a kind of adverse circumstances |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105222917B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884392A (en) * | 2017-10-24 | 2018-04-06 | 中国航天空气动力技术研究院 | Electro-arc heater air-flow enthalpy spectral measurement system |
| CN113029825A (en) * | 2021-03-10 | 2021-06-25 | 中国工程物理研究院流体物理研究所 | Dynamic impact experiment system and method based on high-frequency induction preheating |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3654571B2 (en) * | 1999-08-27 | 2005-06-02 | 株式会社堀場製作所 | Temperature measurement method using micro Raman spectrophotometer |
| CN201233284Y (en) * | 2008-03-11 | 2009-05-06 | 山西太钢不锈钢股份有限公司 | Lateral wall scanning continuous temperature measuring equipment for coke oven charing chamber |
| CN201508239U (en) * | 2009-09-14 | 2010-06-16 | 贵阳铝镁设计研究院 | Mirror reflection infrared high temperature measuring device installation structure |
| CN201607278U (en) * | 2010-02-26 | 2010-10-13 | 张金华 | On-line thermal imaging surface temperature measuring device for furnace tubes |
| CN203310519U (en) * | 2013-06-24 | 2013-11-27 | 重庆市科学技术研究院 | Pulsing photothermal effect bicolor pyrometer device |
| CN204248217U (en) * | 2014-04-11 | 2015-04-08 | 敦创科技股份有限公司 | Laser mirror light source conversion mechanism |
-
2015
- 2015-09-22 CN CN201510607357.0A patent/CN105222917B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3654571B2 (en) * | 1999-08-27 | 2005-06-02 | 株式会社堀場製作所 | Temperature measurement method using micro Raman spectrophotometer |
| CN201233284Y (en) * | 2008-03-11 | 2009-05-06 | 山西太钢不锈钢股份有限公司 | Lateral wall scanning continuous temperature measuring equipment for coke oven charing chamber |
| CN201508239U (en) * | 2009-09-14 | 2010-06-16 | 贵阳铝镁设计研究院 | Mirror reflection infrared high temperature measuring device installation structure |
| CN201607278U (en) * | 2010-02-26 | 2010-10-13 | 张金华 | On-line thermal imaging surface temperature measuring device for furnace tubes |
| CN203310519U (en) * | 2013-06-24 | 2013-11-27 | 重庆市科学技术研究院 | Pulsing photothermal effect bicolor pyrometer device |
| CN204248217U (en) * | 2014-04-11 | 2015-04-08 | 敦创科技股份有限公司 | Laser mirror light source conversion mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 崔建英等: "《光学机械基础 光学材料及其加工工艺》", 30 August 2014 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884392A (en) * | 2017-10-24 | 2018-04-06 | 中国航天空气动力技术研究院 | Electro-arc heater air-flow enthalpy spectral measurement system |
| CN107884392B (en) * | 2017-10-24 | 2020-09-18 | 中国航天空气动力技术研究院 | Arc heater air flow enthalpy value spectral measurement system |
| CN113029825A (en) * | 2021-03-10 | 2021-06-25 | 中国工程物理研究院流体物理研究所 | Dynamic impact experiment system and method based on high-frequency induction preheating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105222917B (en) | 2018-03-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Cook et al. | Reduction of data from thin-film heat-transfer gages-A concise numerical technique. | |
| Mather et al. | Calibrator design for the COBE* far infrared absolute spectrophotometer (FIRAS) | |
| CN107101994B (en) | A kind of spectral emissivity measuring device of opaque material | |
| CN109884140A (en) | A kind of material at high temperature dielectric properties test macro | |
| CN103884449A (en) | Nozzle arc temperature non-contact measurement system based on optical fiber transmission | |
| CN105974345B (en) | Free space terminal short circuit complex dielectric permittivity tests system high temperature calibration method | |
| Da Cunha et al. | Recent advances in harsh environment acoustic wave sensors for contemporary applications | |
| CN112378777B (en) | Laser damage ground simulation test system and method under high-temperature and low-pressure environment | |
| CN105222917A (en) | The contactless measurement of material surface temperature and device under a kind of rugged surroundings | |
| CN105738295A (en) | Emissivity measuring device based on tri-off-axis parabolic mirrors and double reference black bodies | |
| CN103234998B (en) | High heating flux solar full-spectrum radiation heating device | |
| CN112858381B (en) | Heat insulation performance test device and test method for heat insulation material for high-speed aircraft engine | |
| CN107328478B (en) | A method of light measurement Turbine Blade Temperature Field and emissivity are radiated based on three wave bands | |
| Jourdain et al. | Estimation of the power absorbed by the surface of optical components processed by an inductively coupled plasma torch | |
| KR101724333B1 (en) | System and method for measuring dielectric properties of materials by using fabry-perot resonance | |
| Niu et al. | Numerical analysis of thermal radiation noise of shock layer over an infrared optical dome at near-ground altitudes | |
| CN103631289A (en) | Temperature control system of splicing collimating mirror for solar simulator | |
| CN112992387A (en) | Terahertz microwave interference array for measuring two-dimensional electron density profile based on time delay method | |
| CN110411579A (en) | A kind of double modulation emissivity real-time measurement system based on integrating sphere | |
| CN101078700B (en) | Method for measuring material for absorbing microwave energy | |
| CN106248216B (en) | A kind of big temperature difference system of large size deployable antenna constructs and test method | |
| CN115901691A (en) | Wide band section controllable temperature's material reflectivity measuring device | |
| Liu et al. | Investigation of thermal radiation effect on optical dome of sapphire coated yttrium oxide | |
| CN109211796B (en) | Method for measuring high-temperature continuous spectrum emissivity of solid material by using temperature disturbance method | |
| CN207649770U (en) | Dielectric barrier discharge ion source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |