CN214202169U - A temperature control device for an optical glass window in a temperature test chamber - Google Patents
A temperature control device for an optical glass window in a temperature test chamber Download PDFInfo
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- CN214202169U CN214202169U CN202023285842.6U CN202023285842U CN214202169U CN 214202169 U CN214202169 U CN 214202169U CN 202023285842 U CN202023285842 U CN 202023285842U CN 214202169 U CN214202169 U CN 214202169U
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- optical glass
- temperature
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- temperature control
- test chamber
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- 239000005304 optical glass Substances 0.000 title claims abstract description 112
- 238000012360 testing method Methods 0.000 title claims abstract description 69
- 239000002184 metal Substances 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 abstract description 23
- 239000011248 coating agent Substances 0.000 abstract description 4
- 238000000576 coating method Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 13
- 230000001105 regulatory effect Effects 0.000 description 10
- 230000002349 favourable effect Effects 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
本实用新型涉及一种温度试验箱光学玻璃窗控温装置。本实用新型的目的是解决现有技术存在无法消除光学玻璃表面的温度梯度，容易改变光学玻璃的原有镀膜光学参数，无法实现高温试验下的温度控制，并且无法消除光学玻璃内、外表面因温度差引起面形变化的技术问题，提供一种温度试验箱光学玻璃窗控温装置。利用金属波纹管实现了光学玻璃的外凸设计，在金属波纹管内部形成一个缓冲区，减小了温度试验箱内循环气体在光学玻璃内表面附近的流动，并使得较多的工装面积与实验室室温下的空气相接触，光学玻璃的温度更接近室温。通过控温使得光学玻璃内外表面更接近室温，因温度造成的光学玻璃面形问题得到有效控制，有利于提高光学测试精度。
The utility model relates to a temperature control device for an optical glass window of a temperature test box. The purpose of the utility model is to solve the problem that the existing technology cannot eliminate the temperature gradient on the surface of the optical glass, easily change the original coating optical parameters of the optical glass, cannot realize the temperature control under the high temperature test, and cannot eliminate the inner and outer surface of the optical glass. The technical problem of surface shape change caused by temperature difference is provided, and a temperature control device for an optical glass window of a temperature test box is provided. The convex design of the optical glass is realized by using the metal bellows, and a buffer zone is formed inside the metal bellows, which reduces the flow of the circulating gas in the temperature test chamber near the inner surface of the optical glass, and makes more tooling area and experimentation. In contact with air at room temperature, the temperature of the optical glass is closer to room temperature. By controlling the temperature, the inner and outer surfaces of the optical glass are brought closer to room temperature, and the surface shape of the optical glass caused by temperature can be effectively controlled, which is beneficial to improve the accuracy of optical testing.
Description
Technical Field
The utility model relates to a temperature regulating device, concretely relates to temperature test case optical glass window temperature regulating device is applicable to the optical index test of ray apparatus product ground high low temperature test.
Background
According to the requirements of the reliability test, the optical-mechanical product needs to be subjected to high-low temperature tests on the ground so as to check whether the optical index of the optical-mechanical product meets the design requirements under the high-low temperature environment. In order to meet the optical test requirements of optical machine products in a high-low temperature test chamber, generally, optical glass for optical test is mounted on a window on a box wall of the temperature test chamber by using a flange (in the flange), that is, the optical glass is mounted on the box wall of the temperature test chamber, and then the optical machine products on a carrier bracket in the temperature test chamber are tested by penetrating through the optical glass window by ground detection equipment outside the temperature test chamber.
When the optical-mechanical product is subjected to a low-temperature test, the outer surface of the optical glass window can be frosted and dewed, and the optical test is influenced. Meanwhile, when the temperature test box is subjected to high-temperature or low-temperature tests, the optical glass of the optical glass window is deformed due to different temperatures of the inner surface and the outer surface of the optical glass window, so that the axial temperature difference and the radial temperature difference are generated, the refractive index change and the surface shape change of the optical glass are caused, and great influence is brought to the optical test of an optical machine product.
The common solving methods for the problems of frosting and dewing of the optical glass window at low temperature comprise the following two methods:
1. dry air or nitrogen gas is blown to the outer surface of the optical glass, and the blown gas is heated as necessary. However, the method is only used for solving the problems of frosting and dewing of the optical glass, and the problem of temperature gradient on the surface of the optical glass cannot be solved.
2. And heating the outer surface of the optical glass by using a heating film. The disadvantages of this method are: the original coating optical parameters of the optical glass are easy to change, and the method can only be used for properly improving the surface temperature control of the optical glass in a low-temperature test, but cannot realize the temperature control in a high-temperature test.
In addition, neither of the above two methods can provide a fundamental solution to the surface shape change of the inner and outer surfaces of the optical glass caused by the temperature difference. Therefore, it is necessary to provide a new method for controlling the temperature of the optical glass window.
Disclosure of Invention
The utility model aims at solving current temperature test case optical glass window temperature regulating device and having the adoption to optical glass surface dry air or nitrogen gas method of blowing, the temperature gradient on optical glass surface can't be eliminated, adopt the heating film to carry out the heating method to the optical glass surface, change optical glass's original coating film optical parameter easily, can't realize the temperature control under the high temperature test, and in these two kinds of methods can't eliminate optical glass, the surface arouses the technical problem that the shape of face changes because of the difference in temperature, a temperature test case optical glass window temperature regulating device is provided, make the interior surface of optical glass more be close to the room temperature through accuse temperature, the optical glass shape of face problem because of the temperature causes obtains effective control, be favorable to improving optical test precision.
In order to solve the technical problem, the utility model provides a technical solution as follows:
the utility model provides an optical glass window temperature control device of a temperature test chamber, which comprises optical glass; it is characterized in that:
the device also comprises a mounting bracket, a metal corrugated pipe, a temperature control instrument, a temperature control loop and a main temperature sensor;
the optical glass is embedded in the center of the optical glass flange, and the optical glass flange is arranged on the mounting bracket;
flanges are arranged at two ends of the metal corrugated pipe, the flange at one end is connected with the optical glass flange, and the flange at the other end is connected with a window flange arranged on the temperature test box; a through hole is formed in the side wall of one end, close to the optical glass, of the metal corrugated pipe, and a sealing plug is arranged in the through hole;
the temperature control instrument has heating and liquid cooling functions; the temperature control loop comprises a heating element and a liquid cooling element which are both arranged on the outer wall of the metal corrugated pipe in a surrounding manner, and the heating element and the liquid cooling element are both connected with a temperature control instrument; the length of the temperature control loop is less than or equal to that of the metal corrugated pipe;
the main temperature sensor penetrates through the sealing plug to enter the metal corrugated pipe and is arranged at a position close to the inner surface of the optical glass, and the output end of the main temperature sensor is connected with the input end of the temperature controller.
Further, an auxiliary temperature sensor is also included;
the auxiliary temperature sensor is arranged in an area, opposite to the temperature control loop, on the inner wall of the metal corrugated pipe, and the output end of the auxiliary temperature sensor is connected with the input end of the temperature controller.
Furthermore, a sealing ring is arranged between the optical glass and the optical glass flange; and sealing gaskets are arranged on the flange connection end face of the flange at one end of the metal corrugated pipe and the optical glass flange and on the flange connection end face of the flange at the other end of the metal corrugated pipe and the window flange.
Furthermore, the auxiliary temperature sensor is pasted on the inner wall of the metal corrugated pipe.
Further, the heating element adopts a heating wire or a heating belt.
Further, the liquid cooling piece is a liquid cooling pipeline.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model provides a simple and convenient optical glass temperature regulating device to the high low temperature test box with the optical glass window. Utilize corrugated metal pipe to realize optical glass's evagination design, not only at the inside buffer zone that forms of corrugated metal pipe, the flow of temperature test box inner loop gas near optical glass internal surface has been reduced, the influence of convection current has been reduced, and simultaneously, make the air under more frock area and the laboratory room temperature contact, the temperature inside the temperature test box of temperature comparison of optical glass is more close the room temperature, thereby for the optical glass internal surface provides favorable radiation environment, these two aspects are favorable to reducing the influence of temperature test box and flange temperature to optical glass.
2. The utility model provides a temperature test case optical glass window temperature regulating device places mobilizable temperature sensor near optical glass internal surface for the ambient temperature of monitoring optical glass internal surface department realizes the temperature control of higher accuracy.
3. The utility model provides a temperature test case optical glass window temperature regulating device adopts accuse temperature appearance and temperature control circuit to heat or refrigerate corrugated metal pipe, with near optical glass internal surface air control at the room temperature. Meanwhile, the problems of frosting and dewing on the surface of the optical glass during low-temperature test are avoided through temperature control.
4. The utility model provides a temperature test box optical glass window temperature regulating device, the heating method that adopts can not change the coating film system on optical glass surface.
5. The utility model provides a temperature test case optical glass window temperature regulating device can reduce the difference in temperature of optical glass inside and outside surface under the high low temperature test condition greatly, and optical glass deformation volume is little, is favorable to reducing the error of optics test.
6. The utility model provides a temperature test case optical glass window temperature regulating device need not change the structure of current temperature test case, simple to operate easily realizes.
Drawings
Fig. 1 is a schematic structural view of the optical glass window temperature control device of the temperature test chamber of the present invention installed at a window flange of the temperature test chamber, and an optical machine product to be tested is placed on a carrying bracket of the temperature test chamber, wherein an auxiliary temperature sensor is not shown in the figure;
description of reference numerals:
1. optical glass, 2-mounting bracket, 3-metal corrugated pipe, 4-temperature control instrument, 5-temperature control loop, 6-main temperature sensor, 7-optical machine product to be tested, 8-carrying bracket and 9-temperature test box.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
The utility model provides an optical glass window temperature control device of a temperature test chamber, as shown in figure 1, comprising an optical glass 1, a mounting bracket 2, a metal corrugated pipe 3, a temperature control instrument 4, a temperature control loop 5 and a main temperature sensor 6; the optical glass 1 is embedded in the center of an optical glass flange, and the optical glass flange is arranged on the mounting bracket 2 (in rigid connection); flanges are arranged at two ends of the metal corrugated pipe 3, the flange at one end is connected with the optical glass flange, and the flange at the other end is connected with a window flange arranged on the temperature test box 9; a through hole is formed in the side wall of one end, close to the optical glass 1, of the metal corrugated pipe 3, and a sealing plug is arranged in the through hole to seal the position of the through hole; the temperature controller 4 has heating and liquid cooling functions; the temperature control loop 5 comprises a heating element and a liquid cooling element which are both arranged on the outer wall of the metal corrugated pipe 3 in a surrounding manner, and the heating element and the liquid cooling element are both connected with the temperature controller 4; the length of the temperature control loop 5 is less than or equal to that of the metal corrugated pipe 3, and the heating element can adopt a heating wire or a heating belt; the liquid cooling piece is a liquid cooling pipeline; in order to obtain better temperature environment and temperature control effect, the length of the temperature control loop 5 can be set according to specific requirements; the main temperature sensor 6 penetrates through the sealing plug to enter the metal corrugated pipe 3 and is arranged at a position close to the inner surface of the optical glass 1, and the output end of the main temperature sensor 6 is connected with the input end of the temperature controller 4. The utility model discloses utilize corrugated metal pipe 3 to realize optical glass 1's evagination design, not only at the inside buffer zone that forms of corrugated metal pipe 3, the flow of circulating gas near optical glass 1 internal surface has been reduced to temperature test box 9, the influence of convection current has been reduced, and simultaneously, make the air under more frock area and the laboratory room temperature contact, the temperature test box 9 internal temperature of optical glass 1's temperature comparison is more close the room temperature, thereby provide favorable radiation environment for optical glass 1 internal surface. The influence of the temperature test chamber 9 and the flange temperature on the optical glass 1 can be reduced in two aspects. In order to achieve a more precise temperature control, a movable temperature sensor is placed near the inner surface of the optical glass 1 for monitoring the ambient temperature of the inner surface of the optical glass 1. The metal corrugated pipe 3 is heated or refrigerated by adopting a temperature controller 4 and a temperature control loop 5, and the air near the inner surface of the optical glass 1 is controlled at room temperature. Meanwhile, the problems of frosting and dewing on the surface of the optical glass 1 during low-temperature test are avoided through temperature control.
The device also comprises an auxiliary temperature sensor; the auxiliary temperature sensor is arranged (adhered) on the inner wall of the metal corrugated pipe 3 in an area opposite to the temperature control loop 5, and the output end of the auxiliary temperature sensor is connected with the input end of the temperature control instrument 4. A sealing ring is arranged between the optical glass 1 and the optical glass flange; and sealing gaskets are arranged on the flange connection end face of the flange at one end of the metal corrugated pipe 3 and the optical glass flange and on the flange connection end face of the flange at the other end of the metal corrugated pipe 3 and the window flange, so that good sealing is ensured.
The use method of the temperature control device for the optical glass window of the temperature test box comprises the following steps:
1) placing the optical machine product 7 to be tested on a carrying bracket 8 in a temperature test box 9;
2) the temperature control loop 5 is controlled by the temperature controller 4 until the temperature value obtained by the main temperature sensor 6 reaches the room temperature, and the temperature control loop 5 is continuously controlled to keep the temperature value obtained by the main temperature sensor 6 at the room temperature;
3) and (4) performing optical test on the optical machine product 7 to be tested through the optical glass 1 by using a ground detection device.
When the optical test requires that the optical path of the optical glass window cannot be shielded by the temperature sensor, the use method of the optical glass temperature control device of the temperature test chamber comprises the following steps:
1) placing the optical machine product 7 to be tested on a carrying bracket 8 in a temperature test box 9;
2) controlling a temperature control loop 5 by a temperature controller 4 until the temperature value obtained by a main temperature sensor 6 reaches the room temperature, taking the main temperature sensor 6 out of the metal corrugated pipe 3, and continuously controlling the temperature control loop 5 to keep the temperature value obtained by an auxiliary temperature sensor at T;
3) and (5) performing optical test on the optical machine product 7 to be tested through the optical glass by using a ground detection device.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and it is obvious for a person skilled in the art to modify the specific technical solutions described in the foregoing embodiments or to equally replace some technical features of the embodiments, and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions protected by the present invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023285842.6U CN214202169U (en) | 2020-12-30 | 2020-12-30 | A temperature control device for an optical glass window in a temperature test chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023285842.6U CN214202169U (en) | 2020-12-30 | 2020-12-30 | A temperature control device for an optical glass window in a temperature test chamber |
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| Publication Number | Publication Date |
|---|---|
| CN214202169U true CN214202169U (en) | 2021-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023285842.6U Withdrawn - After Issue CN214202169U (en) | 2020-12-30 | 2020-12-30 | A temperature control device for an optical glass window in a temperature test chamber |
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| CN (1) | CN214202169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665832A (en) * | 2020-12-30 | 2021-04-16 | 中国科学院西安光学精密机械研究所 | Temperature control device for optical glass window of temperature test chamber and use method |
-
2020
- 2020-12-30 CN CN202023285842.6U patent/CN214202169U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665832A (en) * | 2020-12-30 | 2021-04-16 | 中国科学院西安光学精密机械研究所 | Temperature control device for optical glass window of temperature test chamber and use method |
| CN112665832B (en) * | 2020-12-30 | 2024-08-02 | 中国科学院西安光学精密机械研究所 | Temperature control device for optical glass window of temperature test chamber and use method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230919 Address after: Room 403, Building 2, Changling Industrial Park, No. 901, West Section of Biyuan 1st Road, High tech Zone, Xi'an City, Shaanxi Province, 710065 Patentee after: Xi'an zhongkexi optical Photoelectric Technology Co.,Ltd. Address before: 710119, No. 17, information Avenue, new industrial park, hi tech Zone, Shaanxi, Xi'an Patentee before: XI'AN INSTITUTE OF OPTICS AND PRECISION MECHANICS OF CAS |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210914 Effective date of abandoning: 20240802 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210914 Effective date of abandoning: 20240802 |