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VACUUM ›› 2019, Vol. 56 ›› Issue (3): 60-65.doi: 10.13385/j.cnki.vacuum.2019.03.14

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High-temperature working infrared detector Dewar heat load test technology

ZHANG Ya-ping, YANG Xiu-hua, HE Yin, HUANG Yi-bin, WANG Bo, WANG Yan, NIE Xi-liang   

  1. Kunming Institute of Physics, Kunming 650223, China
  • Received:2018-07-26 Published:2019-06-26

Abstract: Based on the development of the high temperature working infrared detector Dewar module, the conduction heat load and radiation heat load, which influences the Dewar heat load index importantly, are analyzed and the improved method of Dewar design is proposed. The conventional method of Dewar leak test and the defects of Dewar heat load test under high operating temperature are analyzed. The vacuum protection calorimetry method is adopted to realize a reliable method for heat load detection of high working temperature type Dewar components, which can promote the development of three generations of infrared focal plane detector components.

Key words: High working temperature infrared detector, Dewar, heat load, vacuum protection calorimetry method.

CLC Number: 

  • TB79
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