항공우주기술 (Aerospace Engineering and Technology)
- 제7권1호
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- Pages.115-120
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- 2008
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- 1598-4168(pISSN)
인공위성용 서미스터의 온도측정 정확도 분석
Accuracy analysis on the temperature measurement with thermistor
- 발행 : 2008.07.01
초록
인공위성에 사용되는 온도 측정 센서는 서미스터(Thermistor) 와 AD590이 주로 많이 사용되고 있다. AD590은 IC chip으로 서미스터에 비해 고가이며
The thermistors and AD590 are widely used for temperature measurement in space application. The resistance of thermistor will vary according to the temperature variation therefore the external voltage or current stimulus signal have to be provided to measure resistance variation. Recently high resolution electro optic camera system of satellite requires tight thermal control of the camera structure to minimize the thermal structural distortion which can affects the image quality. In order to achieve