JPS618833U

JPS618833U - Cooling device for infrared detection element

Info

Publication number: JPS618833U
Application number: JP9341384U
Authority: JP
Inventors: 一司西村
Original assignee: 三菱電機株式会社
Priority date: 1984-06-22
Filing date: 1984-06-22
Publication date: 1986-01-20

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の赤外検知素子用冷却装置を示す図、第２
図は本考案による赤外検知素子用冷却装置の一実施例を
示す図である。図において、１はボンベ、１ａは容量の小さいボンベ、
１ｂは容量の大きいボンベ、２は冷却器、３９３ａｗ
３ｂはチューブ、４，４ａ，４ｂはフィン付チュ
−フゝ、５，５ａｓ５ｂはジュールトムソン弁、６
はデュア、７は赤外検知素子、８は減圧弁である。なお、図中、同一符号は同一または相当部分を示す。Figure 1 shows a conventional cooling device for infrared detection elements;
The figure shows an embodiment of the infrared sensing element cooling device according to the present invention. In the figure, 1 is a cylinder, 1a is a small capacity cylinder,
1b is a large capacity cylinder, 2 is a cooler, 39 3aw
3b is a tube, 4, 4a, 4b are finned tubes, 5, 5as 5b is a Joule-Thomson valve, 6
7 is an infrared detection element, and 8 is a pressure reducing valve. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

In an apparatus for cooling an infrared detection element to a cryogenic temperature using the Joule-Thomson effect, a first conduit having a first Joule-Thomson valve at its tip and to which refrigerant gas is supplied is spirally wound around a support. A second conduit having a second Joule-Thompson valve at its tip and to which refrigerant gas is supplied is connected to the first Joule-Thompson valve on the support.
is wound coaxially with the conduit to form a second Joule-Thompson valve cooler, and the first Joule-Thompson valve cooler is supplied with high-pressure refrigerant gas from a small-capacity high-pressure gas cylinder, and then the A cooling device for an infrared sensing element, characterized in that the second Joule-Thomson valve equipped cooler is configured to supply refrigerant gas whose pressure is reduced by a pressure reducing valve from a high-pressure gas cylinder with a large capacity.