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Airborne radar low-pressure test sealing test device

An airborne radar and sealing test technology, which is used in liquid/vacuum measurement for liquid tightness, radio wave measurement systems, instruments, etc., can solve the problem that low-pressure test devices cannot meet the test indicators, etc., and improve the test test. capacity, reduce the weight of the device, improve the durability effect

Pending Publication Date: 2020-09-01
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is how to solve the problem that the low air pressure test device in the prior art cannot meet the test index

Method used

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  • Airborne radar low-pressure test sealing test device
  • Airborne radar low-pressure test sealing test device
  • Airborne radar low-pressure test sealing test device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 As shown, the airborne radar low-pressure test airtight test device includes a low-pressure test box 1, an expansion device 2, a connector 3, multiple sets of test cables 4, and a test instrument 5; the expansion device 2 is large at one end and small at the other end. Cavity, the small end of the expansion device 2 is an open end, the open end is sealed and connected with the low air pressure test box 1, the expansion device 2 communicates with the low air pressure test box 1, and the large end of the expansion device 2 is a closed end , the closed end has a through installation hole, and the connector 3 is sealed and installed in the installation hole, and each group of test cables 4 is used to connect the test instrument 5, the connector 3 and the airborne radar; the connector 3 is multiple Each set of test cables includes two sections of cables, one of which connects the test instrument 5 and the connector 3 and is located outside, and the other sec...

Embodiment 2

[0050] combine Figure 5 As shown, in this embodiment, on the basis of the first embodiment above, the airborne radar low pressure test sealing test device also includes two liquid adapters 6, and the liquid adapters 6 are sealed and installed in the installation hole at the closed end of the expansion device 2 Inside.

[0051] combine image 3 As shown, two second special-shaped holes 223 are opened in the middle of the test disc 22 , which are circular and arc-shaped, and are used for installing the liquid adapter 6 .

[0052] The airborne radar low pressure test seal test device also includes three cooling water pipes, one of which is connected to one end of the first liquid adapter 6, and the other water pipe is connected to the other end of the first liquid adapter 6 and passed through The expansion device 2 enters the low air pressure test box 1, and then returns to the expansion device 2 from the low air pressure test box 1 and connects the second liquid adapter 2, an...

Embodiment 3

[0055] Such as Figure 6 As shown, the structure of the expansion device 2 in this embodiment is different from that in Embodiments 1 and 2: the small end of the expansion cylinder 21 in this embodiment is a cylindrical cylinder, and the large end is a conical structure.

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Abstract

The invention discloses an airborne radar low-pressure test sealing test device which comprises a low-pressure test box, an expansion device, a connector, a plurality of groups of test cables and a test instrument. The expansion device is a cavity with a large end and a small end; the small end of the expansion device is an open end, and the open end of the expansion device is in sealed connectionwith the low-pressure test box; the expansion device is communicated with the low-pressure test box; the large end of the expansion device is a closed end, and the closed end is provided with a through mounting hole; the connector is mounted in the mounting hole in a sealed manner; and the test instrument is connected with the connector and the airborne radar through the test cables. The device has the advantages that an original test hole is expanded through the expansion device; the expansion device is connected with the low-pressure sealing box in a sealed mode; the sealing performance ofa test is guaranteed; the connector is installed at the closed end of the expansion device; different connectors can be installed according to needs; and the test capacity of the test is greatly improved.

Description

technical field [0001] The invention relates to a test device, in particular to an airborne radar low-pressure test airtight test device. Background technique [0002] For products that work in plateau areas and ball-borne and airborne radar products, the working environment air pressure is far lower than a standard atmospheric pressure. With the characteristics of large size and high sensitivity, its working environment is extremely special, and its environmental adaptability is extremely high, especially its high power, working in ultra-high temperature, ultra-low temperature and low pressure working environment, so in order to ensure the radar products in this environment To ensure the reliability and working performance, it is necessary to carry out low-pressure environment and reliability tests in the development and production. [0003] Due to the need for functional testing and performance testing of the radar during the test, the sample is placed in a low-pressure c...

Claims

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Application Information

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IPC IPC(8): G01S7/40G01M3/02
CPCG01S7/4004G01M3/02
Inventor 刘太锋张伟陈立涛宋平张海堂叶小春冯志杨振垲
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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