Pressure-gage calibration, mass-spectrometer leak detector measures leakage rates up to 300 times greater than its normal limit. Approach utilizes constant-volume displacement characteristic of mechanical vacuum pump. Vacuum system must be small for calibration measurement validity and reduction of outgassing.
Extending the range of leak detectors
NASA Tech Briefs ; 4 , 1
1979-08-01
Miscellaneous
No indication
English
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