CN110186593A - A kind of hydronic thermochromic liquid crystal caliberating device of ball-type water - Google Patents
A kind of hydronic thermochromic liquid crystal caliberating device of ball-type water Download PDFInfo
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- CN110186593A CN110186593A CN201910481645.4A CN201910481645A CN110186593A CN 110186593 A CN110186593 A CN 110186593A CN 201910481645 A CN201910481645 A CN 201910481645A CN 110186593 A CN110186593 A CN 110186593A
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- liquid crystal
- thermochromic liquid
- spherical shell
- angle
- copper
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/005—Calibration
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Liquid Crystal (AREA)
- Radiation Pyrometers (AREA)
Abstract
A kind of hydronic thermochromic liquid crystal caliberating device of ball-type water.It includes the angle α protractor, track, source of parallel light, computer, temperature acquisition card, video frequency collection card, thermocouple, video camera, the sink with heater, water pump, water circulation pipe and copper spherical shell；Effect of the present invention: when carrying out thermochromic liquid crystal thermometric calibration experiment, color shown by thermochromic liquid crystal when three test specimen temperature, light illumination angle, view angle variables are in a certain value can be measured simultaneously.Flat thermochromic liquid crystal caliberating device is utilized before can eliminating, measurement surface existing error when being the test specimen temperature of complex-curved (the corresponding light illumination angle of each point on surface, view angle are different), while can also eliminate before using the uneven bring error of electric-heating-wire-heating markers earnest surface temperature distribution.The thermochromic liquid crystal colour developing image library for covering three temperature, light illumination angle, view angle influence factors can be obtained by the present apparatus, to carry out accurate thermometric using thermochromic liquid crystal.
Description
Technical field
The invention belongs to thermochromic liquid crystal (cholesteric liquid crystal) thermometry fields, add more particularly, to a kind of ball-type water circulation
The thermochromic liquid crystal caliberating device of heat.
Background technique
Thermochromic liquid crystal is a kind of colour development material in temperature field, is chiefly used in measuring the temperature of object.It is surveyed using thermochromic liquid crystal
Need to demarcate the corresponding relationship of color and temperature before temperature.The color of thermochromic liquid crystal is reflected by it the wavelength decision of light, reflected light
Wavelength and thermochromic liquid crystal molecule rotation direction screw pitch, light illumination angle and spectral region and opposite observation position etc. because being known as
It closes.When light illumination angle and fixed view angle, color changes a variation with temperature.The key of thermochromic liquid crystal thermometric is just
It is that the color for showing thermochromic liquid crystal is come out with a certain amount information representation, i.e., before using thermochromic liquid crystal thermometric, answers
Temperature calibration first is carried out to thermochromic liquid crystal.Traditional temperature calibration device is flat, and by the way of electric-heating-wire-heating
Plate is heated.On the one hand the device can only fix light illumination angle and view angle, can not determine the two angle values pair
The influence of thermochromic liquid crystal colour developing, when another aspect electric-heating-wire-heating, since heating wire is unevenly distributed, leads to each position of plate
Temperature Distribution is different.Some simple plane survey test specimens can not be considered with the influence of the two angle values.But some
The surface of measurement test specimen is complex-curved, such as the turbo blade of aero-engine, each point is relative to light on blade surface
Its light illumination angle and view angle are all different for source and observation camera, so the two angle values must be taken into consideration
It influences.And when using electric-heating-wire-heating calibration object, surface temperature distribution can unevenly demarcate liquid crystal and bring error.At this
In the case of kind, if certain error will be generated using the caliberating device that traditional flat plate type electrothermal silk heats.
Summary of the invention
To solve the above-mentioned problems, the purpose of the present invention is to provide a kind of hydronic thermochromic liquid crystal calibration of ball-type water
Device, it can accurately measure thermochromic liquid crystal institute when three temperature, light illumination angle, view angle variables are in a certain value simultaneously
The color of display.
In order to achieve the above object, the hydronic thermochromic liquid crystal caliberating device of ball-type water provided by the invention includes the angle α
Protractor, track, source of parallel light, computer, temperature acquisition card, video frequency collection card, thermocouple, video camera, with having heaters
Sink, water pump, water circulation pipe and copper spherical shell；Wherein the centre of sphere of copper spherical shell is arranged in the right angle being made of X-axis and Y-axis and sits
At 0 point for marking system, surface is coated with one layer of thermochromic liquid crystal layer；The inside of sink with having heaters and copper spherical shell is followed by water
Endless tube road is connected；The intake-outlet of water pump is connected to water-circulating pipe road；The installation of TC on the sink with having heaters,
And by temperature acquisition card and calculate mechatronics；A certain position of the video camera setting in X-axis, by video frequency collection card with
Mechatronics are calculated, and camera lens is towards copper spherical shell；Track is quadrant arcuation, is located at the outside of copper spherical shell, and
And it is located at using the center of copper spherical shell as in the first quartile in the center of circle；The angle α protractor is mounted on the front end face of track；Directional light
The upper end in source is mounted in a sliding manner on the bottom surface of track, and the directional light issued is radiated at always on copper spherical shell.
One layer of pitch-dark layer of water solubility is additionally provided between the surface and thermochromic liquid crystal layer of the copper spherical shell.
The hydronic thermochromic liquid crystal caliberating device of ball-type water provided by the invention has the following beneficial effects:
1, the present apparatus can measure test specimen temperature, light irradiation when carrying out thermochromic liquid crystal thermometric calibration experiment simultaneously
Color shown by thermochromic liquid crystal when three angle, view angle variables are in a certain value.
2, utilize flat thermochromic liquid crystal caliberating device before can eliminating, measurement surface be it is complex-curved (surface it is every
Light illumination angle, view angle corresponding to one point are different) test specimen temperature when existing error.
3, when before can eliminating using electric-heating-wire-heating mode, the uneven bring of calibration object surface temperature distribution is missed
Difference.
4, the thermochromic liquid crystal for covering three temperature, light illumination angle, view angle influence factors can be obtained by the present apparatus
Develop the color image library, to carry out accurate thermometric using thermochromic liquid crystal.
Detailed description of the invention
Fig. 1 is the hydronic thermochromic liquid crystal caliberating device structural schematic diagram of ball-type water provided by the invention
Specific embodiment
As shown in Figure 1, the hydronic thermochromic liquid crystal caliberating device of ball-type water provided by the invention include the angle α protractor 1,
Track 2, source of parallel light 3, computer 4, temperature acquisition card 5, video frequency collection card 6, thermocouple 7, video camera 8, with having heaters
Sink 11, water pump 12, water circulation pipe 13 and copper spherical shell 14；Wherein the centre of sphere of copper spherical shell 14 is arranged by X-axis 9 and Y-axis
At 0 point of 15 rectangular coordinate systems constituted, surface is coated with one layer of thermochromic liquid crystal layer；Sink 11 and copper ball with having heaters
The inside of shell 14 is connected by water circulation pipe 13；The intake-outlet of water pump 12 is connected on water circulation pipe 13；Thermocouple 7
It is mounted on the sink 11 with having heaters, and is electrically connected by temperature acquisition card 5 with computer 4；Video camera 8 is arranged in X
A certain position on axis 9 is electrically connected by video frequency collection card 6 with computer 4, and camera lens is towards copper spherical shell 14；Track 2 is
Quadrant arcuation, is located at the outside of copper spherical shell 14, and be located at using the center of copper spherical shell 14 as the center of circle first as
In limit；The angle α protractor 1 is mounted on the front end face of track 2；The upper end of source of parallel light 3 is mounted on track 2 in a sliding manner
On bottom surface, the directional light issued is radiated at always on copper spherical shell 14.
One layer of pitch-dark layer of water solubility is additionally provided between the surface and thermochromic liquid crystal layer of the copper spherical shell 14.
Now the working principle of the hydronic thermochromic liquid crystal caliberating device of ball-type water provided by the invention is described below:
When in use, it is pitch-dark to spray one layer of water solubility on the surface of copper spherical shell 14 by staff first, to improve
The resolution ratio of thermochromic liquid crystal, then one layer of thermochromic liquid crystal is sprayed on water-soluble pitch-dark layer.Then the sink with having heaters is opened
11 and water pump 12, recirculated water is passed through into water circulation pipe using the recirculated water in heater heating water tank 11, and by water pump 12
13 recycle between the sink 11 and copper spherical shell 14 with having heaters.It can be heated by adjusting in the sink 11 with having heaters
The voltage of device adjusts the temperature of recirculated water in copper spherical shell 14, after a period of time the temperature of copper spherical shell 14 and recirculated water
It will reach unanimity and reach stable state.At this moment recirculated water i.e. copper in the sink 11 with having heaters at this time is measured using thermocouple 7
The temperature of matter spherical shell 14, is then transferred to temperature acquisition card 5, and temperature acquisition card 5 sends temperature signal at this time to calculating again
Machine 4.Adjusting source of parallel light 3 makes it be moved to a certain position on track 2, and at this moment the angle α protractor 1 can measure at this time flat
Angle, that is, light illumination angle α between 8 shooting direction of directional light and video camera that line light source 3 issues.Opening source of parallel light 3 makes in parallel
Illumination is mapped on copper spherical shell 14, while acquiring copper 14 surface thermochromic liquid crystal of spherical shell under Current Temperatures using video camera 8
Color image, is then transferred to video frequency collection card 6, and video frequency collection card 6 sends picture signal to computer 4 again.At this time in copper
It can be concluded that the normal direction 17 and tangential direction 10 of the tested point, the normal of tested point on a certain tested point 16 of matter spherical shell 14
The angle of direction 17 and the received directional light of video camera 8 is view angle β, we can be obtained by a certain temperature in this way, light
Line illumination angle is α, when view angle is β, color shown by thermochromic liquid crystal.Similarly we can be by adjusting with having heaters
The voltage of heater in sink 11, within the scope of thermochromic liquid crystal colour temp adjust arrive different temperature, by track 20 to
Light illumination angle α is adjusted in the range of 90 degree, and different tested points is chosen on copper spherical shell 14 and obtains different view angle β,
Computer 4 is recycled to carry out the integration record of data.We, which can be obtained by, in this way covers temperature, light illumination angle, view angle
The thermochromic liquid crystal colour developing image library of three influence factors, so as to utilize thermochromic liquid crystal to carry out accurate thermometric.
Claims (2)
1. a kind of hydronic thermochromic liquid crystal caliberating device of ball-type water, it is characterised in that: the device includes the angle α protractor
(1), track (2), source of parallel light (3), computer (4), temperature acquisition card (5), video frequency collection card (6), thermocouple (7), camera shooting
Machine (8), the sink (11) with having heaters, water pump (12), water circulation pipe (13) and copper spherical shell (14)；Wherein copper spherical shell
(14) the centre of sphere is arranged at 0 point of the rectangular coordinate system being made of X-axis (9) and Y-axis (15), and surface is coated with one layer of thermocolour liquid
Crystal layer；Sink (11) with having heaters is connected with the inside of copper spherical shell (14) by water circulation pipe (13)；Water pump
(12) intake-outlet is connected on water circulation pipe (13)；Thermocouple (7) is mounted on the sink with having heaters (11), and
And it is electrically connected by temperature acquisition card (5) with computer (4)；The a certain position that video camera (8) is arranged on X-axis (9), passes through view
Frequency capture card (6) is electrically connected with computer (4), and camera lens is towards copper spherical shell (14)；Track (2) is quarter circular arc
Shape is located at the outside of copper spherical shell (14), and is located at using the center of copper spherical shell (14) as in the first quartile in the center of circle；The angle α
Protractor (1) is mounted on the front end face of track (2)；The upper end of source of parallel light (3) is mounted on track (2) in a sliding manner
On bottom surface, the directional light issued is radiated at always on copper spherical shell (14).
2. the hydronic thermochromic liquid crystal caliberating device of ball-type water according to claim 1, it is characterised in that: the copper
One layer of pitch-dark layer of water solubility is additionally provided between the surface and thermochromic liquid crystal layer of matter spherical shell (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910481645.4A CN110186593A (en) | 2019-05-30 | 2019-05-30 | A kind of hydronic thermochromic liquid crystal caliberating device of ball-type water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910481645.4A CN110186593A (en) | 2019-05-30 | 2019-05-30 | A kind of hydronic thermochromic liquid crystal caliberating device of ball-type water |
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| CN110186593A true CN110186593A (en) | 2019-08-30 |
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| CN201910481645.4A Pending CN110186593A (en) | 2019-05-30 | 2019-05-30 | A kind of hydronic thermochromic liquid crystal caliberating device of ball-type water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880881A (en) * | 2021-03-31 | 2021-06-01 | 同济大学 | Experimental system for researching temperature sensitivity characteristic of photoluminescence solution luminous intensity |
| CN113777623A (en) * | 2021-11-11 | 2021-12-10 | 中国民航大学 | Prediction and alarm method for airplane wake threat area |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043583A (en) * | 2015-06-30 | 2015-11-11 | 中国民航大学 | Circulating water-based tubular liquid crystal calibration device |
| CN108593145A (en) * | 2018-05-24 | 2018-09-28 | 中国民航大学 | The device at labeling sight angle and light illumination angle and thermochromic liquid crystal colour developing correspondence |
-
2019
- 2019-05-30 CN CN201910481645.4A patent/CN110186593A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043583A (en) * | 2015-06-30 | 2015-11-11 | 中国民航大学 | Circulating water-based tubular liquid crystal calibration device |
| CN108593145A (en) * | 2018-05-24 | 2018-09-28 | 中国民航大学 | The device at labeling sight angle and light illumination angle and thermochromic liquid crystal colour developing correspondence |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880881A (en) * | 2021-03-31 | 2021-06-01 | 同济大学 | Experimental system for researching temperature sensitivity characteristic of photoluminescence solution luminous intensity |
| CN112880881B (en) * | 2021-03-31 | 2022-02-01 | 同济大学 | Experimental system for researching temperature sensitivity characteristic of photoluminescence solution luminous intensity |
| CN113777623A (en) * | 2021-11-11 | 2021-12-10 | 中国民航大学 | Prediction and alarm method for airplane wake threat area |
| CN113777623B (en) * | 2021-11-11 | 2022-02-08 | 中国民航大学 | Prediction and alarm method for airplane wake threat area |
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Application publication date: 20190830 |