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Flexible auxiliary supporting mechanism of dewar of refrigeration type infrared detector

A technology of infrared detectors and auxiliary supports, which is applied in the direction of instruments, measuring devices, scientific instruments, etc. It can solve the problems of affecting the normal operation of the detectors, the inability to guarantee the effectiveness, and the focal plane plate falling out, etc., and achieves light weight, small size, The effect of ensuring the stability of the structure

Active Publication Date: 2016-09-07
BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The focal plane plate and the detector are connected by pins. Under severe mechanical conditions, the vibration may easily cause the focal plane plate to come out of the detector, affecting the normal operation of the detector.
At present, the main measure to strengthen the focal plane plate is to apply silicone rubber. Its main advantages are simple and light.

Method used

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  • Flexible auxiliary supporting mechanism of dewar of refrigeration type infrared detector
  • Flexible auxiliary supporting mechanism of dewar of refrigeration type infrared detector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 and figure 2 As shown, a flexible auxiliary supporting mechanism of a refrigeration type infrared detector Dewar, including a ring, an upper pad ring, an upper rubber pad, a lower rubber pad, a lower pad ring, and a bracket;

[0030] Among them, the ring is a semi-cylindrical structure with an inner diameter of 37mm, an outer diameter of 42mm, and a width of 10mm; the main body of the bracket is a cuboid structure, and a semi-cylindrical structure corresponding to the ring is set on the upper part of the bracket. The upper part of the bracket is combined into a complete cylindrical structure;

[0031] Set a circle of grooves with a rectangular cross-section at the center of the inner surface of the ring and the upper part of the bracket, the depth of the groove is 1mm, and the width is 6mm;

[0032] The upper pad ring is embedded in the groove of the holding ring, and consists of two parts, namely the supporting part contacting the dewar of the coole...

Embodiment 2

[0037] A flexible auxiliary support mechanism for a refrigeration type infrared detector Dewar, including a holding ring, an upper pad ring, an upper rubber pad, a lower rubber pad, a lower pad ring, and a bracket;

[0038] Among them, the ring is a semi-cylindrical structure with an inner diameter of 39mm, an outer diameter of 44mm, and a width of 10mm; the main body of the bracket is a cuboid structure, and a semi-cylindrical structure corresponding to the ring is set on the upper part of the bracket. The upper part of the bracket is combined into a complete cylindrical structure;

[0039] Set a circle of grooves with a rectangular section at the center of the inner surface of the ring and the upper part of the bracket. The depth of the groove is 1mm and the width is 6mm;

[0040] The upper pad ring is embedded in the groove of the holding ring, and consists of two parts, namely the supporting part contacting the dewar of the cooled infrared detector and the fixed part conta...

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Abstract

The invention belongs to the refrigeration type auxiliary tool technical field and relates to a flexible auxiliary supporting mechanism of the dewar of a refrigeration type infrared detector. The flexible auxiliary supporting mechanism includes a holding ring, an upper backing ring, an upper rubber pad, a lower rubber pad, a lower backing ring and a supporting bracket; the holding ring and the upper part of the supporting racket are combined to form a complete cylindrical structure; the upper backing ring is embedded in a groove of the holding ring; the lower backing ring and the upper backing ring are of the same structure and are embedded into a groove of the supporting racket; the upper rubber pad and the lower rubber pad are respectively embedded in a groove of the inner surface of the supporting part of the upper backing ring and a groove of the inner surface of the supporting part of the lower backing ring; and the dewar at a set position of the infrared detector is supported through the upper rubber pad and the lower rubber pad. Since the elastic rubber pads contact with the dewar of the infrared detector, so that the detector can be flexibly supported, and the dewar of the detector can be effectively protected under a mechanical environment.

Description

technical field [0001] The invention belongs to the technical field of cooling auxiliary tooling, and in particular relates to a flexible auxiliary supporting mechanism for a cooling infrared detector Dewar. Background technique [0002] At present, there are two main aspects of auxiliary support for cooled infrared detectors: [0003] 1) Dewar auxiliary support for the detector. The cooling type infrared detector consists of two parts, the Dewar assembly and the refrigerator. The installation surface of the detector is located at the rear end of the refrigeration compressor. The sensitive surface is located inside the Dewar, and the instability of the structure is likely to cause the instability of the optical performance. Since the Dewar component hangs from the installation surface, it is easy to break under the mechanical environment. At present, the commonly used support method is to design the mechanical structure for auxiliary support on the thinner part of the Dewa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/02
CPCG01J5/0205
Inventor 常虹魏小林林森张璁刘勇
Owner BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH