CN210774375U - Multi-channel radiation pyrometer - Google Patents
Multi-channel radiation pyrometer Download PDFInfo
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- CN210774375U CN210774375U CN201921955052.9U CN201921955052U CN210774375U CN 210774375 U CN210774375 U CN 210774375U CN 201921955052 U CN201921955052 U CN 201921955052U CN 210774375 U CN210774375 U CN 210774375U
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- filter
- pyrometer
- photomultiplier
- plate
- optical fiber
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Abstract
The utility model discloses a multi-channel radiation pyrometer, which comprises a high temperature source, a transmission optical fiber, a pyrometer main body, a high voltage power supply and an oscilloscope; a thermal radiation signal emitted by a high-temperature source is transmitted to the pyrometer main body through a transmission optical fiber, and the pyrometer main body converts the signal into an electrical signal and transmits the electrical signal to the oscilloscope in the form of an image; the pyrometer main part includes filter, PMT photoelectric conversion system and quick-witted case, and PMT photoelectric conversion system includes photomultiplier, and transmission fiber, filter and photomultiplier three one-to-one constitute a measurement passageway, and wherein the measurement passageway is no longer than 8. The utility model provides a pair of multichannel radiation pyrometer has that temperature measurement range is wide, the high temperature extreme is big, advantage that systematic error is little.
Description
Technical Field
The utility model belongs to the technical field of strong impact transient state pyrometry, especially, relate to a multichannel radiation pyrometer.
Background
Transient radiation pyrometers can be broadly classified into two categories: optical imaging pyrometers and fiber coupled pyrometers, both of which have advantages and disadvantages. The optical imaging pyrometer uses an optical lens system to image a detected light source onto a sensitive surface of a detector, so that each channel corresponds to the same target source, the sensitivity is high, but the operations of light collimation and focusing are complicated, and the optical imaging pyrometer needs to be arranged near a target range, so the safety is poor. The fiber coupled pyrometer detects and transmits signal light by using a plurality of optical fibers, each optical fiber corresponds to one measuring channel, and quasi-monochromatic light with required central wavelength is filtered by using an interference filter. The system is characterized by simple structure, easy operation and remote measurement, but has the problems of increasing the uncertainty of temperature measurement due to different detection areas of all channels. If the two can be combined together, namely, the transmission optical fiber is introduced into the optical pyrometer, the defects can be compensated, and the effect of making up for the deficiencies is achieved.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the deficiencies in the prior art, the utility model provides a multichannel radiation pyrometer has the advantage that temperature measurement range is wide, the high temperature extreme is big, system error is little.
The technical scheme is as follows: in order to achieve the above object, the utility model discloses a multi-channel radiation pyrometer, including high temperature source, transmission fiber, pyrometer main part, high voltage power supply and oscilloscope; the high-temperature source, the transmission optical fiber, the pyrometer main body and the oscilloscope are sequentially arranged, a thermal radiation signal emitted by the high-temperature source is transmitted to the pyrometer main body through the transmission optical fiber, and the pyrometer main body converts the signal into an electric signal and transmits the electric signal to the oscilloscope in an image form.
Furthermore, the pyrometer main body comprises a filter, a PMT photoelectric conversion system and a case, wherein the filter and the PMT photoelectric conversion system are arranged in the case; the PMT photoelectric conversion system comprises a photomultiplier tube, and the transmission optical fibers, the filter and the photomultiplier tube are in one-to-one correspondence to form a measurement channel.
Further, the number of the measurement channels is not more than 8.
Further, the number of the measurement channels is 8.
Furthermore, a filter support is arranged in a matched manner with the filter, and the filter is arranged in the case through the filter support;
the filter plate bracket comprises a bottom plate, a filter plate clamping groove, a bearing seat, a rotating rod, a vertical pressing rod, a baffle, a spring and a top ball; the bottom plate is fixedly arranged at the bottom in the case; the whole filter clamping groove is of an arc-shaped structure with an upward opening, the outer convex surface of the filter clamping groove of the arc-shaped structure is fixedly connected with the upper plate surface of the bottom plate, and the filter is vertically clamped and embedded in the filter clamping groove; the rotating rod is rotatably connected to the bottom plate through a bearing seat, a through hole is formed in the end of the upper rod of the rotating rod, and the vertical pressing rod is movably inserted into the through hole; the top ball is arranged at the top end of the vertical compression bar, and the baffle is arranged at the lower end of the vertical compression bar; the spring is elastically sleeved on the vertical compression rod, the lower end of the spring elastically abuts against the baffle, and the upper end of the spring elastically abuts against the rotating rod; the vertical compression bar presses down and fixes the filter in the filter clamping groove through the elastic stress of the spring.
Furthermore, a photomultiplier bracket is arranged in a matched manner with the photomultiplier, and the photomultiplier is arranged in the case through the photomultiplier bracket;
the photomultiplier bracket comprises a hollow substrate, a substrate conduit, a lower arc hollow clamping plate, a rotating shaft and an upper arc hollow clamping plate; the lower arc hollow clamping plate is communicated with the hollow base plate through a base plate guide pipe and is arranged on the hollow base plate, the upper arc hollow clamping plate is hinged with the lower arc hollow clamping plate through a rotating shaft, the photomultiplier is arranged in the lower arc hollow clamping plate, and the lower arc hollow clamping plate rotates downwards to be matched with the lower arc hollow clamping plate to embrace the transparent vacuum shell of the photomultiplier; the upper arc hollow splint is provided with an air inlet butt joint port, the lower arc hollow splint is provided with an air outlet butt joint port, and the air inlet butt joint port and the air outlet butt joint port are in plug-in butt joint according to different inner diameters; the photomultiplier bracket also comprises an air guide pipe, all the hollow substrates are connected in series on the air guide pipe, an air inlet pipe orifice of the air guide pipe is in butt joint with an air outlet end of an air supply source outside the case, and an air outlet pipe orifice of the air guide pipe extends to the outside of the case.
Further, the photomultiplier tube holder is made of a transparent material similar to that of the transparent vacuum casing of the photomultiplier tube.
Further, the transmission fiber adopts a pure quartz fiber.
Further, the filter adopts a narrow bandwidth interference filter.
Further, the photomultiplier tube employs a 52 mm-bore linear focusing PMT.
Has the advantages that: the utility model discloses a multichannel radiation pyrometer, beneficial effect is as follows:
1) the utility model has the advantages of wide temperature measuring range, large high temperature extreme value and small system error;
2) the utility model has the advantages of wide temperature measurement range spanning 2000-10000 ℃, high sensitivity and wide measurement spectrum;
3) the utility model discloses simple structure, it is easy to adjust, and the transport is convenient.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a multi-channel radiation pyrometer system;
FIG. 2 is a schematic structural view of a pyrometer body;
fig. 3 is a schematic structural view of a filter holder;
FIG. 4 is a schematic diagram of the structure of a photomultiplier tube holder.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in the attached figure 1, the multi-channel radiation pyrometer comprises a high temperature source 1, a transmission optical fiber 2, a pyrometer main body 3, a high-voltage power supply and an oscilloscope 4; the high-temperature source 1, the transmission optical fiber 2, the pyrometer main body 3 and the oscilloscope 4 are sequentially arranged, a thermal radiation signal emitted by the high-temperature source 1 is transmitted to the pyrometer main body 3 through the transmission optical fiber 2, and the pyrometer main body 3 converts the signal into an electrical signal and transmits the electrical signal to the oscilloscope 4 in an image form.
The pyrometer main body 3 comprises a filter 31, a PMT photoelectric conversion system and a case 33, wherein the filter 31 and the PMT photoelectric conversion system are arranged in the case 33; the PMT photoelectric conversion system comprises a photomultiplier tube 32, and the transmission optical fiber 2, the filter 31 and the photomultiplier tube 32 form a measurement channel in a one-to-one correspondence manner.
Wherein the number of measurement channels is no more than 8.
In the utility model, the measuring channel is 8, as a specific example, has constituted 8 passageway radiation pyrometers promptly.
As shown in fig. 2 and fig. 3, the filter 31 is provided with a filter support 34, and the filter 31 is disposed in the cabinet 33 through the filter support 34; the filter holder 34 comprises a bottom plate 341, a filter clamping groove 342, a bearing seat 343, a rotating rod 344, a vertical pressing rod 345, a baffle 346, a spring 347 and a top ball 348; the bottom plate 341 is fixedly arranged at the bottom in the case 33; the whole filter clamping groove 342 is of an arc-shaped structure with an upward opening, an outer convex surface of the filter clamping groove 342 of the arc-shaped structure is fixedly connected with the upper plate surface of the bottom plate 341, and the filter 31 is vertically clamped and embedded in the filter clamping groove 342; the rotating rod 344 is rotatably connected to the bottom plate 341 through a bearing seat 343, a through hole is formed in the upper rod end of the rotating rod, and the vertical pressing rod 345 is movably inserted into the through hole; the top ball 348 is arranged at the top end of the vertical compression bar 345, and the baffle 346 is arranged at the lower end of the vertical compression bar 345; the spring 347 is elastically sleeved on the vertical compression bar 345, the lower end of the spring 347 elastically abuts against the baffle 346, and the upper end of the spring 347 elastically abuts against the rotating rod 344; the vertical pressing rod 345 presses and fixes the filter 31 in the filter clamping groove 342 through the elastic stress of the spring 347. Through the setting of filter support 34, filter 31 dismouting convenience and maintenance convenience have greatly been improved.
As shown in fig. 2 and fig. 4, the photomultiplier tube 32 is provided with a photomultiplier tube holder 35, and the photomultiplier tube 32 is disposed in the housing 33 through the photomultiplier tube holder 35; the photomultiplier tube holder 35 includes a hollow base plate 351, a base plate guide 352, a lower arc hollow clamp plate 353, a rotary shaft 354 and an upper arc hollow clamp plate 355; the lower arc hollow clamping plate 353 is communicated with the hollow base plate 351 through a base plate guide pipe 352 and is arranged on the hollow base plate 351, the upper arc hollow clamping plate 355 is hinged with the lower arc hollow clamping plate 353 through a rotating shaft 354, the photomultiplier tube 32 is arranged in the lower arc hollow clamping plate 353, and the lower arc hollow clamping plate 355 rotates downwards to be matched with the lower arc hollow clamping plate 353 to embrace the transparent vacuum shell of the photomultiplier tube 32; an air inlet butt joint port 357 is arranged on the upper arc hollow clamp plate 355, an air outlet butt joint port 356 is arranged on the lower arc hollow clamp plate 353, and the air inlet butt joint port 357 and the air outlet butt joint port 356 are in plug-in butt joint according to different inner diameters; the photomultiplier tube holder 35 further includes an air guide tube 358, all the hollow substrates 351 are connected in series to the air guide tube 358, an air inlet pipe orifice of the air guide tube 358 is butted with an air outlet end of an air supply source outside the case 33, and an air outlet pipe orifice of the air guide tube 358 extends to the outside of the case 33. Environmental condition easily causes the influence to photomultiplier 32's stability, wherein, ambient temperature is higher, photomultiplier 32 sensitivity descends more greatly, through last circular arc hollow splint 355 with down circular arc hollow splint 353 cooperation can laminate the transparent vacuum casing of parcel photomultiplier 32 completely, thereby make the more conduction of the temperature on the transparent vacuum casing to last circular arc hollow splint 355 and down circular arc hollow splint 353, and then the heat is taken away in the ventilation air cooling heat dissipation, the radiating effect is good, efficient.
It should be noted that the photomultiplier tube holder 35 is made of a transparent material identical to the transparent vacuum casing of the photomultiplier tube 32, so as to ensure the measurement accuracy.
More specifically, the transmission fiber 2 is a pure silica fiber.
More specifically, the filter 21 is a narrow bandwidth interference filter.
More specifically, the photomultiplier tube 32 employs a 52mm diameter linear focusing PMT.
The utility model discloses still have following advantage:
4) the utility model has the advantages of wide temperature measuring range, large high temperature extreme value and small system error;
5) the utility model has the advantages of wide temperature measurement range spanning 2000-10000 ℃, high sensitivity and wide measurement spectrum;
6) the utility model discloses simple structure, it is easy to adjust, and the transport is convenient.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (10)
1. A multi-channel radiation pyrometer, comprising: comprises a high-temperature source (1), a transmission optical fiber (2), a pyrometer main body (3), a high-voltage power supply and an oscilloscope (4); the high-temperature source (1), the transmission optical fiber (2), the pyrometer main body (3) and the oscilloscope (4) are sequentially arranged, a heat radiation signal emitted by the high-temperature source (1) is transmitted to the pyrometer main body (3) through the transmission optical fiber (2), and the pyrometer main body (3) converts the signal into an electric signal and transmits the electric signal to the oscilloscope (4) in an image form.
2. A multi-channel radiation pyrometer as defined in claim 1, wherein: the pyrometer main body (3) comprises a filter (31), a PMT photoelectric conversion system and a case (33), wherein the filter (31) and the PMT photoelectric conversion system are both arranged in the case (33); the PMT photoelectric conversion system comprises a photomultiplier tube (32), and the transmission optical fiber (2), the filter (31) and the photomultiplier tube (32) form a measuring channel in a one-to-one correspondence mode.
3. A multi-channel radiation pyrometer as defined in claim 2, wherein: the number of the measuring channels is not more than 8.
4. A multi-channel radiation pyrometer as defined in claim 2, wherein: the number of the measuring channels is 8.
5. A multi-channel radiation pyrometer as defined in claim 2, wherein: the filter plate (31) is provided with a filter plate bracket (34) in a matching way, and the filter plate (31) is arranged in the case (33) through the filter plate bracket (34);
the filter plate bracket (34) comprises a bottom plate (341), a filter plate clamping groove (342), a bearing seat (343), a rotating rod (344), a vertical pressing rod (345), a baffle plate (346), a spring (347) and a top ball (348); the bottom plate (341) is fixedly arranged at the bottom in the case (33); the filter clamping groove (342) is integrally of an arc-shaped structure with an upward opening, the outer convex surface of the filter clamping groove (342) of the arc-shaped structure is fixedly connected with the upper plate surface of the bottom plate (341), and the filter (31) is vertically clamped and embedded in the filter clamping groove (342); the rotating rod (344) is rotatably connected to the bottom plate (341) through a bearing seat (343), a through hole is formed in the upper rod end of the rotating rod, and the vertical pressing rod (345) is movably inserted into the through hole; the top ball (348) is arranged at the top end of the vertical pressure rod (345), and the baffle (346) is arranged at the lower end of the vertical pressure rod (345); the spring (347) is elastically sleeved on the vertical pressure rod (345), the lower end of the spring (347) elastically abuts against the baffle plate (346), and the upper end of the spring (347) elastically abuts against the rotating rod (344); the vertical pressure rod (345) presses and fixes the filter (31) in the filter clamping groove (342) through the elastic stress of the spring (347).
6. A multi-channel radiation pyrometer as defined in claim 2, wherein: the photomultiplier (32) is provided with a photomultiplier bracket (35) in a matching way, and the photomultiplier (32) is arranged in the case (33) through the photomultiplier bracket (35);
the photomultiplier bracket (35) comprises a hollow substrate (351), a substrate guide pipe (352), a lower arc hollow clamping plate (353), a rotating shaft (354) and an upper arc hollow clamping plate (355); the lower arc hollow clamping plate (353) is communicated with the hollow substrate (351) through a substrate guide pipe (352) and is arranged on the hollow substrate (351), the upper arc hollow clamping plate (355) is hinged with the lower arc hollow clamping plate (353) through a rotating shaft (354), the photomultiplier (32) is arranged in the lower arc hollow clamping plate (353), and the lower arc hollow clamping plate (355) rotates downwards to be matched with the lower arc hollow clamping plate (353) to embrace the transparent vacuum shell of the photomultiplier (32); an air inlet butt joint port (357) is arranged on the upper arc hollow clamp plate (355), an air outlet butt joint port (356) is arranged on the lower arc hollow clamp plate (353), and the air inlet butt joint port (357) and the air outlet butt joint port (356) are in plug-in butt joint according to different inner diameters; the photomultiplier support (35) further comprises an air guide pipe (358), all the hollow substrates (351) are connected to the air guide pipe (358) in series, an air inlet pipe opening of the air guide pipe (358) is in butt joint with an air outlet end of an air supply source outside the case (33), and an air outlet pipe opening of the air guide pipe (358) extends to the outside of the case (33).
7. A multi-channel radiation pyrometer as defined in claim 6, wherein: the photomultiplier tube holder (35) is made of a transparent material identical to the transparent vacuum casing of the photomultiplier tube (32).
8. A multi-channel radiation pyrometer as claimed in any one of claims 2 to 7, wherein: the transmission optical fiber (2) adopts a pure quartz optical fiber.
9. A multi-channel radiation pyrometer as claimed in any one of claims 2 to 7, wherein: the filter (31) adopts a narrow bandwidth interference filter.
10. A multi-channel radiation pyrometer as claimed in any one of claims 2 to 7, wherein: the photomultiplier (32) adopts a linear focusing PMT with the aperture of 52 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921955052.9U CN210774375U (en) | 2019-11-13 | 2019-11-13 | Multi-channel radiation pyrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921955052.9U CN210774375U (en) | 2019-11-13 | 2019-11-13 | Multi-channel radiation pyrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210774375U true CN210774375U (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921955052.9U Expired - Fee Related CN210774375U (en) | 2019-11-13 | 2019-11-13 | Multi-channel radiation pyrometer |
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| Country | Link |
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| CN (1) | CN210774375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715739A (en) * | 2019-11-13 | 2020-01-21 | 西安工业大学 | Multichannel radiation pyrometer system suitable for strong impact transient high temperature measurement |
-
2019
- 2019-11-13 CN CN201921955052.9U patent/CN210774375U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715739A (en) * | 2019-11-13 | 2020-01-21 | 西安工业大学 | Multichannel radiation pyrometer system suitable for strong impact transient high temperature measurement |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200616 Termination date: 20201113 |