Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Infrared radiometer for vacuum low-temperature environment

A technology of infrared radiation and vacuum low temperature, applied in the field of infrared radiation, can solve problems such as calibration problems of infrared load performance testing equipment, achieve the effects of limited background noise, containment of dark current, and improvement of detection performance

Inactive Publication Date: 2021-11-19
BEIJING ZHENXING METROLOGY & TEST INST
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides an infrared radiometer for a vacuum and low temperature environment, which can solve the calibration problem of existing infrared load performance testing equipment in orbital space, and can realize 200K-400K infrared radiation detection, ensuring accurate and reliable infrared radiation values

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Infrared radiometer for vacuum low-temperature environment
  • Infrared radiometer for vacuum low-temperature environment
  • Infrared radiometer for vacuum low-temperature environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0029] like figure 1 As shown, the infrared radiometer for vacuum and low temperature environment provided by the present invention includes a primary mirror 1, a stray light shading cover 2, a vacuum chopper 3, a field diaphragm 4, a cooling type infrared detector 5, a secondary mirror 6, Vacuum cooling chamber 7, ultra-weak signal amplification processing system 8, computer 9, equipment to be calibrated 10, stray light hood 2, ma...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an infrared radiometer for a vacuum low-temperature environment, which comprises a vacuum cold cabin, and a stray light eliminating light shield, a primary mirror, a vacuum chopper, a field diaphragm, a secondary mirror and a refrigeration type infrared detector sequentially arranged on a platform in the cabin according to a light path propagation direction. Equipment to be calibrated is arranged on the side wall of the vacuum cold cabin through a flange and is aligned with the stray light eliminating light shield; and a liquid nitrogen inlet pipeline and a nitrogen outlet pipeline are arranged on a Dewar bottle cap of the refrigeration type infrared detector and are respectively communicated with a liquid nitrogen inlet pipeline and a nitrogen outlet pipeline on a flange plate of the vacuum cold cabin. The vacuum cold cabin is adopted to simulate a vacuum low-temperature environment, the refrigeration type infrared detector is adopted to detect an ultra-weak infrared radiation signal, the ultra-weak wide temperature range infrared radiation of 200K-400K can be measured, and an effective guarantee can be provided for infrared load performance test equipment.

Description

technical field [0001] The invention belongs to the field of infrared radiation, and in particular relates to an infrared radiometer for vacuum and low temperature environments. Background technique [0002] With the development of aerospace technology, more and more infrared payloads are used in space detection, and the application fields include military, earth remote sensing, ocean detection, high-resolution earth observation, etc. Radiation parameter calibration is the basis and prerequisite for quantitative detection of infrared loads. Through radiation parameter calibration, the radiation value of the target can be quantitatively detected, so that the infrared load can judge the type of target through the radiation value, which greatly improves the infrared load. detection capability. At the same time, radiation parameter calibration improves the data application efficiency of infrared loads such as reconnaissance systems and remote sensing systems. [0003] Infrared...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/52
Inventor 翟思婷孙红胜张玉国王加朋赵丹吴柯萱
Owner BEIJING ZHENXING METROLOGY & TEST INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com