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| Analysis of Hot Cathode Ionization Vacuum Gauge Usage and Failure in the Satellite Thermal Test |
| Received:February 28, 2012 Revised:June 15, 2012 |
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| DOI： |
| KeyWord:hot cathode ionization vacuum gauge thermal test vacuum degree contamination |
| Author | Institution |
| DU Chun-lin |
Beijing Institute of Spacecraft Environmental Engineering， Beijing ， China |
| XU Zhong-xu |
Beijing Institute of Spacecraft Environmental Engineering， Beijing ， China |
| LIU Chun |
Beijing Institute of Spacecraft Environmental Engineering， Beijing ， China |
| XU Zhao-wu |
Beijing Institute of Spacecraft Environmental Engineering， Beijing ， China |
| LI Pei-yin |
Beijing Institute of Spacecraft Environmental Engineering， Beijing ， China |
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| Abstract: |
| The hot cathode ionization vacuum gauge (ionization gauge) has a wide range of applications in high vacuum measurement. The application of the gauge in satellite thermal vacuum test was introduced and analyzed. In satellite thermal vacuum test, the gauges were installed on the satellite and trestle. It was founded that the gauges on trestle worked normally throughout the test, but the gauges on satellite failed after a period of time. The failure phenomena were the same. It was founded that the cause of failure is contamination by organic substance. |
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