CN208568083U - A kind of Cryo Refrigerator low temperature parameter measuring device - Google Patents
A kind of Cryo Refrigerator low temperature parameter measuring device Download PDFInfo
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- CN208568083U CN208568083U CN201821315147.XU CN201821315147U CN208568083U CN 208568083 U CN208568083 U CN 208568083U CN 201821315147 U CN201821315147 U CN 201821315147U CN 208568083 U CN208568083 U CN 208568083U
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- low temperature
- temperature parameter
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Abstract
The utility model relates to a kind of Cryo Refrigerator low temperature parameter measuring devices.The device includes the laser fever tablet being attached on cryocooler cold head, the test vacuum (-tight) housing being located on the outside of cryocooler cold head, the optical window being mounted at the top of test vacuum (-tight) housing and laser emitter and infrared radiation thermometer above optical window；The optical window set gradually for laser completely through optical window and for infrared light completely through optical window；Laser light absorbing material is coated in the laser fever tablet.The utility model is able to solve deficiency in the prior art, realizes wireless measurement and the telemeasurement of refrigeration machine low temperature parameter, has the characteristics that measurement process is simple, measurement accuracy is high.
Description
Technical field
The utility model relates to Cryo Refrigerator technical fields, and in particular to a kind of Cryo Refrigerator low temperature parameter measurement dress
It sets.
Background technique
Cryo Refrigerator is to provide the electronic product of low temperature environment for infrared detector and superconductive device etc., wherein with backheat
Based on formula refrigeration, have the characteristics that light-weight, cooling is fast, high cooling efficiency, high reliablity and stability are high.Cryo Refrigerator is
It is widely used in the fields such as space flight and aviation, military research, resource detection, industrial or agricultural and health.
Existing Cryo Refrigerator low temperature parameter tests measurement method are as follows: cryogenic temperature data are acquired and are passed using temperature
Sensor is tightly attached on refrigeration cooling surface using adhesive or screw, and signal lead is drawn by vacuum seal structure and measured；For
The acquisition of refrigerating capacity data uses heater strip or heating sheet, is tightly attached on cryocooled face using adhesive or screw, signal draws
Line is drawn by vacuum seal structure and is measured.These measurement method common ground are: (1) sensor must be tightly attached to measured object
On；(2) there must be measurement lead, in order to reduce leakage heat, it is necessary to the lead small using diameter, length is long.Not only measurement process
It is cumbersome, and can be because the interference of lead and the error brought into, lead to the decline of measurement accuracy.
Utility model content
The purpose of this utility model is to provide a kind of Cryo Refrigerator low temperature parameter measuring devices, which can
Deficiency in the prior art is solved, realizes wireless measurement and the telemeasurement of refrigeration machine low temperature parameter.
To achieve the above object, the utility model uses following technical scheme:
A kind of Cryo Refrigerator low temperature parameter measuring device, including be attached on cryocooler cold head laser fever tablet, be provide with
Test vacuum (-tight) housing on the outside of cryocooler cold head, the optical window being mounted at the top of test vacuum (-tight) housing and it is located on optical window
The laser emitter and infrared radiation thermometer of side；The optical window include set gradually for laser completely through optical window
Mouthful and for infrared light completely through optical window；Laser light absorbing material, laser absorption are coated in the laser fever tablet
Material, for absorbing the laser being irradiated in laser fever tablet.
Further, the laser fever tablet is coupled in the top of cryocooler cold head by heat-conducting glue.
From the above technical scheme, the utility model is able to solve deficiency in the prior art, realizes refrigeration machine low temperature
The wireless measurement of parameter and telemeasurement have the characteristics that measurement process is simple, measurement accuracy is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Cryo Refrigerator low temperature parameter measuring device in the utility model.
Wherein:
1, laser emitter, 2, infrared radiation thermometer, 3, the optical window passed through for laser, 4, for infrared light
Optical window, 5, laser fever tablet, 6, cryocooler cold head, 7, test vacuum (-tight) housing.
Specific embodiment
The utility model is described further with reference to the accompanying drawing:
A kind of Cryo Refrigerator low temperature parameter measuring device as shown in Figure 1, including the laser being attached on cryocooler cold head 6
Fever tablet 5, the test vacuum (-tight) housing 7 for being located at the outside of cryocooler cold head 6, the optical window being mounted at the top of test vacuum (-tight) housing 7 with
And laser emitter 1 and infrared radiation thermometer 2 above optical window.The optical window includes successively setting of setting gradually
Set for laser completely through optical window 3 and for infrared light completely through optical window 4.The laser fever tablet
Laser light absorbing material is coated on 5.Laser emitter 1 and infrared radiation thermometer 2 are located at the outside of test vacuum (-tight) housing 7.
Further, flange is installed on refrigeration machine, the bottom for testing vacuum (-tight) housing is removably mounted at the flange of refrigeration machine
On, and test and be equipped with sealing element between vacuum (-tight) housing and flange.Test vacuum (-tight) housing and flange surround a sealing space.Test vacuum
Installing port is offered at the top of cover, optical window insertion is mounted in installing port, and is equipped between optical window and installing port close
Sealing.Vacuum (-tight) housing is tested, for keeping the vacuum degree of tested cryocooler cold head, reduces gas conduction and condensation vapor to measurement
It influences, while playing a supporting role to optical window.
Further, the optical window be circle, including left semicircle for laser completely through optical window and
Right semi-circle for infrared light completely through optical window.It is designed by the parameter to optical window, in same optics
On window, left semicircle is enable to penetrate laser all, right semi-circle can be such that infrared light all passes through.Since transmitance will affect
Measurement accuracy, the utility model can measure calibration to optical window.
Further, the laser fever tablet is coupled in the top of cryocooler cold head by heat-conducting glue.Laser fever tablet
Effect is: after receiving the laser of respective wavelength, laser is all absorbed to and is generated heat, in given cryogenic temperature,
Balance the refrigerating capacity of refrigeration machine.
The measurement method of the utility model are as follows:
(1) test vacuum (-tight) housing is vacuumized, makes the vacuum degree tested in vacuum (-tight) housing less than 10-2Pa。
(2) laser emitter is opened, the laser of laser transmitter projects passes through the optical window for laser light, irradiation
Onto laser fever tablet.By adjusting the size of the laser emitting power of laser emitter, meet the cryogenic temperature of refrigeration machine
It is required that.
(3) laser light absorbing material being coated in laser fever tablet is emitted onto the laser in laser fever tablet and all inhales
It receives, laser fever tablet is made to generate heat, which is used to balance refrigeration machine cooling capacity.
(4) infrared radiation thermometer is opened, the infrared light of infrared radiation thermometer transmitting passes through the optical window for infrared light,
The temperature value of the infrared light collection laser fever tablet, and the temperature value is back to infrared radiation thermometer.Infrared radiation thermometer, for surveying
Measure the cryogenic temperature of cryocooler cold head.
The low temperature parameter of refrigeration machine is primarily referred to as cryogenic temperature and refrigerating capacity.The utility model utilizes laser and infrared technique
The low temperature parameter of Cryo Refrigerator is measured, does not use signal lead in measurement process, it is dry to can be improved measuring accuracy, reduction lead
It disturbs.The utility model realizes wireless measurement and the telemeasurement of Cryo Refrigerator low temperature parameter, simple with measurement process,
The features such as measurement accuracy is high.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines
In range.
Claims (2)
1. a kind of Cryo Refrigerator low temperature parameter measuring device, it is characterised in that: including the laser hair being attached on cryocooler cold head
Backing, the test vacuum (-tight) housing being located on the outside of cryocooler cold head are mounted on the optical window tested at the top of vacuum (-tight) housing and are located at
Laser emitter and infrared radiation thermometer above optical window；The optical window include set gradually for laser it is completely saturating
The optical window crossed and for infrared light completely through optical window；Laser absorption material is coated in the laser fever tablet
Material.
2. a kind of Cryo Refrigerator low temperature parameter measuring device according to claim 1, it is characterised in that: the laser hair
Backing is coupled in the top of cryocooler cold head by heat-conducting glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821315147.XU CN208568083U (en) | 2018-08-15 | 2018-08-15 | A kind of Cryo Refrigerator low temperature parameter measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821315147.XU CN208568083U (en) | 2018-08-15 | 2018-08-15 | A kind of Cryo Refrigerator low temperature parameter measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208568083U true CN208568083U (en) | 2019-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821315147.XU Active CN208568083U (en) | 2018-08-15 | 2018-08-15 | A kind of Cryo Refrigerator low temperature parameter measuring device |
Country Status (1)
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| CN (1) | CN208568083U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115343A (en) * | 2018-08-15 | 2019-01-01 | 中国电子科技集团公司第十六研究所 | A kind of Cryo Refrigerator low temperature parameter measuring device and its measurement method |
-
2018
- 2018-08-15 CN CN201821315147.XU patent/CN208568083U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115343A (en) * | 2018-08-15 | 2019-01-01 | 中国电子科技集团公司第十六研究所 | A kind of Cryo Refrigerator low temperature parameter measuring device and its measurement method |
| CN109115343B (en) * | 2018-08-15 | 2023-09-22 | 中国电子科技集团公司第十六研究所 | Low-temperature parameter measuring device and measuring method for low-temperature refrigerator |
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