Hybrid detector high-low temperature working test box

Abstract

The utility model discloses a hybrid detector high-low temperature working test box which comprises a camera obscura, a glass resolution target plate, a light source, a refrigeration and heating cycle assembly, a humidifier, a temperature and humidity sensor and an upper computer. A glass resolution target plate, a refrigerating and heating circulating assembly, a humidifier and a temperature and humidity sensor are accommodated in the camera obscura; the light source is connected with a back light path of the glass resolution target plate; and a to-be-tested device is arranged opposite to the central axis of the front surface of the glass resolution target plate. According to the test box, the high and low temperature working imaging effect of the hybrid detector can be observed in real time under extremely low illumination (5E-5lx), and then images can be observed while test conditions can be adjusted through the upper computer. The glass resolution target plate is combined with the light source system, so that an observation target in a camera obscura does not need to be designed. Therefore, separation of a system control panel and an observation system is avoided, and test conditions and imaging effects cannot be in one-to-one correspondence.

Description

Technical Field

[0001] The present application relates to the technical field of vacuum-semiconductor hybrid photoelectric detectors, and in particular to a high and low temperature working test box for hybrid detectors. Background Art

[0002] The main components of the vacuum-semiconductor hybrid photodetector are the photocathode of the vacuum device and the high-vacuum ceramic shell. The semiconductor detector is used as the anode for receiving and reading out electrons, which can make up for the shortcomings of the vacuum device and solid-state device itself. As a new type of detector that developed rapidly in the 1990s, it is widely used in low-light night vision, lidar, high-energy physics and space exploration.

[0003] Hybrid photoelectric detectors generate serious heat in special use environments and when working. It is necessary to test their working performance in high and low temperature environments. The high and low temperature working test requirements for hybrid devices are more stringent.

[0004] Existing detection methods include: those in the field of vacuum technology and those in the field of semiconductor technology; in the relevant vacuum technology, the detection method is to place the device in a high and low temperature box, apply the rated working voltage under low illumination, and judge whether the high and low temperature operation is normal by observing the change in current; in the relevant semiconductor technology, the device is placed in a high and low temperature box, and the rated voltage is applied in natural light to observe the imaging quality.

[0005] However, in the relevant vacuum technology, during the high and low temperature working test, only the current change is observed, and there is no image quality monitoring; in the relevant semiconductor detector technology, during the high and low temperature working test, the imaging is observed under natural light, and the impact of the cathode high voltage on the imaging quality in the low illumination environment is not considered. The existing high and low temperature working equipment cannot meet the observation of the high and low temperature working test of the hybrid photoelectric detector under low illumination.

[0006] The information disclosed in the background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in the field. Utility Model Content

[0007] In response to the above-mentioned technical problems, the present application provides a hybrid detector high and low temperature working test chamber, which can observe the high and low temperature working imaging effect of the hybrid detector in real time under an extremely low illumination of 5E-5lx, and realize accurate and reliable observation of the high and low temperature working test of the hybrid photoelectric detector under low illumination.

[0008] The present application provides a hybrid detector high and low temperature working test box, including: a dark box, a glass resolution target plate, a light source, a refrigeration and heating cycle component, a humidifier, a temperature and humidity sensor, and a host computer;

[0009] The dark box contains a glass resolution target plate, a refrigeration and heating cycle component, a humidifier, and a temperature and humidity sensor;

[0010] The light source is connected to the optical path at the back of the glass resolution target plate; the device to be tested is arranged facing the central axis of the front of the glass resolution target plate;

[0011] The host computer is connected to the device under test through communication; the refrigeration and heating cycle components, the humidifier, and the temperature and humidity sensors are all electrically connected to the host computer.

[0012] Preferably, it comprises: a light source control system; the light source control system is electrically connected to the light source and to the host computer.

[0013] Preferably, it comprises: a device stage; the device stage is accommodated in a dark box; a plurality of mounting positions are arranged on the device stage at intervals along the circumference of the device stage; and the device to be tested is accommodated in the mounting positions.

[0014] Preferably, the refrigeration and heating circulation component includes: a circulation coil, a circulation pump, and a valve; the circulation coil is accommodated and arranged on the inner wall of the dark box; the water inlet of the circulation coil is connected to the water outlet pipeline of the external circulation water source, and the circulation pump and the valve are arranged at intervals on the connected pipeline; the water outlet of the circulation coil is connected to the water inlet pipeline of the external circulation water source.

[0015] Preferably, the circulation pump is electrically connected to the host computer.

[0016] Preferably, the valve is electrically connected to the host computer.

[0017] Preferably, the light source control system is arranged outside the dark box.

[0018] Preferably, the light source is arranged outside the dark box.

[0019] Preferably, it comprises: a nitrogen filling interface; the nitrogen filling interface is arranged on the lower side wall of the dark box.

[0020] The beneficial effects of this application include:

[0021] 1) The hybrid detector high and low temperature working test chamber provided in this application can observe the high and low temperature working imaging effect of the hybrid detector in real time under extremely low illumination (5E-5lx), and then the host computer can adjust the test conditions while observing the image. By combining the glass resolution target plate with the light source system, there is no need to design the observation target in the dark box. This avoids the separation of the system control panel and the observation system, the problem of the test conditions and imaging effects not being able to correspond one to one, and the high power consumption of multiple display screens. In addition, the improvement of the light source system can ensure the brightness uniformity of the observation target under low illumination.

[0022] 2) The hybrid detector high and low temperature working test chamber provided in this application can not only solve the problem that vacuum device or digital device high and low temperature working test chamber cannot meet the test conditions of hybrid device, but also integrate the advantages of both. At the same time, the control system and observation system are integrated into the host computer operating system, effectively reducing the volume of the darkroom and shortening the working hours of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the main structure of the high and low temperature working test box for the hybrid detector provided in this application;

[0024] Figure 2 A schematic diagram of a top view of the structure of the structural device stage provided in this application;

[0025] Figure 3 A schematic diagram of the main cross-sectional structure of the dark box provided in this application;

[0026] Figure 4 A schematic diagram of the connection of the high and low temperature working test chamber module of the hybrid detector provided for this application;

[0027] Legend:

[0028] Dark box 10, light source control system 20, glass resolution target plate 30, light source 40, refrigeration and heating circulation component 60, humidifier 70, device stage 80, installation position 90, video line 100, host computer 110, circulation pump 61, valve 62, circulation coil 63, temperature and humidity sensor 51. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0031] The controller used in this embodiment is an existing structure, and the control circuit can be implemented through simple programming by technicians in this field. It belongs to the common knowledge in this field. It is only used without modification, so the control method and circuit connection are not described in detail.

[0032] The technical means that are not described in detail in this application and are not used to solve the technical problems of this application are all set according to the common knowledge in the field, and can be implemented in a variety of common knowledge settings.

[0033] See also Figures 1 to 4 The hybrid detector high and low temperature working test box provided in the embodiment of the present application includes: a dark box 10, a light source control system 20, a glass resolution target plate 30, a light source 40, a refrigeration and heating cycle component 60, a humidifier 70, a device stage 80, a mounting position 90, a video line 100, and a host computer 110.

[0034] The glass resolution target plate 30, the humidifier 70, the device stage 80, and the mounting position 90 are arranged inside the dark box 10; the light source control system 20, the light source 40, and the host computer 110 are arranged outside the dark box 10; the video line 100 passes through the side wall of the dark box 10 to the outside of the dark box 10 and is connected to the host computer 110 for communication. In this application, the communication connection can be realized by the video line 100. The light source 40 is arranged outside the dark box 10, which can prevent the light source 40 from generating too high a temperature, making it difficult to control the ambient temperature in the dark box 10.

[0035] The device stage 80 is accommodated in the dark box 10 and is respectively arranged on the opposite side of the dark box 10 with the resolution target plate 30. A plurality of mounting positions 90 are arranged at equal intervals on the device stage 80, and the center of the input end of the device to be tested is arranged flush with the central axis of the glass resolution target plate 30. The device to be tested is placed on the mounting position 90, and according to the imaging requirements during the test, the device to be tested is rotated through the device stage 80, and the angle between the device to be tested and the glass resolution target plate 30 is adjusted to improve the imaging clarity on the host computer 110. The devices to be tested are respectively electrically connected to the host computer 110 to read the test results.

[0036] The refrigeration and heating cycle assembly 60 and the humidifier 70 are used to adjust the temperature and humidity of the environment in the dark box 10 according to the high and low temperature working requirements. The working temperature range is set to: -70℃~180℃; the humidity range is set to: 10%~98%RH (temperature range 10℃~95℃).

[0037] During use, the illumination in the dark box 10 can be adjusted by the brightness of the light source 40, and can be maintained after multiple experiments based on the test results of the device under test. The top surface of the dark box 10 is open and a cover is provided on the box body. When the device is placed, the top surface of the box body can be opened for operation.

[0038] In a specific embodiment, the refrigeration and heating cycle component 60 includes: a circulation pump 61, a valve 62, and a circulation coil 63; the circulation coil 63 is arranged on the inner wall of the dark box 10, and the water inlet and outlet of the circulation coil 63 are respectively arranged on the side wall of the dark box 10, and are respectively connected to the water outlet and water inlet pipelines of the external circulating water source through pipelines. The external circulating water source can be stored in a water tank, or it can be a water source with a water temperature set according to the temperature change. It can be set according to methods known in the art, which will not be repeated here. The specific ambient temperature requirements in the dark box 10 are set according to the experimental requirements, and the water temperature passed by the circulation coil 63 is adjusted according to the temperature requirements to achieve reliable temperature regulation.

[0039] In a specific embodiment, a circulating pump 61 and a valve 62 are arranged at intervals on the pipeline connecting the water inlet of the circulating coil 63 and the water outlet of the external circulating water source. The operator can control the opening and flow rate of the circulating water through the circulating pump 61 and the valve 62.

[0040] In a specific embodiment, the circulation pump 61 and the valve 62 are electrically connected to the host computer 110 , and the operator can control the circulation pump 61 and the valve 62 through the host computer 110 , thereby reliably adjusting the temperature of the environment in the dark box 110 .

[0041] In a specific embodiment, the temperature and humidity sensor 51 is provided on the inner wall of the dark box 10 near the device stage 80; the temperature and humidity sensor 51 is electrically connected to the host computer 110. It is convenient for the operator to read the temperature change of the environment in the dark box 10 through the host computer 110, and it is convenient for the operator to adjust the opening and closing of the circulation pump 61 and the valve 62 according to the change of the temperature and humidity environment, so as to realize the control of the environment temperature in the dark box 10.

[0042] In a specific embodiment, the humidifier 70 is electrically connected to the host computer 110. It is convenient for the operator to read the humidity change of the environment in the dark box 10 through the host computer 110, and it is convenient for the operator to adjust the opening and closing of the circulation pump 61 and the valve 62 according to the change of the temperature and humidity environment, so as to realize the control of the humidity of the environment in the dark box 10.

[0043] The light source control system 20 is used to adjust the working illumination of the environment in the dark box 10 according to the detection needs, and the adaptive module of the device under test will adjust the working voltage according to the change of the working illumination in the detection environment. In a specific embodiment, the light source control system 20 is electrically connected to the host computer 110 to facilitate control operations.

[0044] The light source 40 is connected to the back optical path of the resolution target plate 30, that is, the light source 40 irradiates the resolution target plate 30, which serves as the output port of the light source and is used as the observation target of the detector in a low-light environment. When detecting the image, the operator can not only see the imaging quality through the host computer 110, but also observe the changes in resolution in real time.

[0045] A glass resolution target plate 30 is used, and the light generated by the light source 40 can pass through the resolution target plate 30 and enter the dark box 10 .

[0046] The host computer 110 is used to receive and display the image information of the device to be tested, such as the hybrid device EBAPS detector. When performing the test, the operator can adjust the test conditions by operating the refrigeration and heating cycle component 60 and the humidifier 70 to start and stop.

[0047] The dark box 10 may be a box structure with a coating on its surface to achieve blackening treatment to shield external stray light, thereby preventing the detection result of the device under test from being affected in an extremely low illumination environment.

[0048] In a specific embodiment, the working volume of the dark box 10 is 600L, that is, the length, width and height of the test box are 120, 80 and 60 cm respectively, wherein the length of 120 cm is the focal length to ensure clear imaging of the lens.

[0049] In a specific embodiment, when a high and low temperature experiment is required and the inside of the dark box 10 needs to be kept dry, a nitrogen filling interface is provided on the lower side wall of the dark box. The nitrogen filling interface is connected to a dry nitrogen storage tank. Thus, according to the experimental needs, dry nitrogen is first filled into the dark box 10 before the experiment to avoid the environment humidity in the dark box 10 being too high and the related experiment cannot be carried out.

[0050] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hybrid detector high and low temperature working test box, characterized in that: include: Dark box, glass resolution target plate, light source, refrigeration and heating cycle components, humidifier, temperature and humidity sensor, host computer; The dark box contains a glass resolution target plate, a refrigeration and heating cycle component, a humidifier, and a temperature and humidity sensor; The light source is connected to the optical path at the back of the glass resolution target plate; the center of the input end of the device under test is set flush with the central axis of the glass resolution target plate; The host computer is connected to the device under test through communication; the refrigeration and heating cycle components, the humidifier, and the temperature and humidity sensors are all electrically connected to the host computer.

2. The hybrid detector high and low temperature working test box according to claim 1 is characterized in that: include: Light source control system; the light source control system is electrically connected to the light source and to the host computer.

3. The hybrid detector high and low temperature working test box according to claim 1 is characterized in that: include: The device stage is accommodated in a dark box; a plurality of mounting positions are arranged at intervals along the circumference of the device stage on the device stage; The device under test is accommodated in the installation position.

4. The hybrid detector high and low temperature working test box according to claim 1 is characterized in that: The refrigeration and heating circulation components include: a circulation coil, a circulation pump, and a valve; the circulation coil is accommodated and arranged on the inner wall of the dark box; the water inlet of the circulation coil is connected with the water outlet pipeline of the external circulation water source, and the circulation pump and valve are arranged at intervals on the connected pipeline; the water outlet of the circulation coil is connected with the water inlet pipeline of the external circulation water source.

5. The hybrid detector high and low temperature working test box according to claim 4 is characterized in that: The circulation pump is electrically connected to the host computer.

6. The hybrid detector high and low temperature working test box according to claim 4 is characterized in that: The valve is electrically connected to the host computer.

7. The hybrid detector high and low temperature working test box according to claim 2 is characterized in that: The light source control system is arranged outside the dark box.

8. The hybrid detector high and low temperature working test box according to claim 2 is characterized in that: The light source is set outside the dark box.

9. The hybrid detector high and low temperature working test box according to claim 1, characterized in that: include: Nitrogen filling interface; The nitrogen filling interface is arranged on the lower side wall of the dark box.

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