Array of pressure sensors operates reliably and repeatably over wide temperature range, extending from normal boiling point of water down to boiling point of nitrogen. Sensors accurate and repeat to within 0.1 percent. Operate for 12 months without need for recalibration. Array scanned electronically, sensor readings multiplexed and sent to desktop computer for processing and storage. Used to measure distributions of pressure in research on boundary layers at high Reynolds numbers, achieved by low temperatures.
Cryogenic Multichannel Pressure Sensor With Electronic Scanning
NASA Tech Briefs ; 18 , 9
1994-09-01
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Cryogenic Multichannel Pressure Sensor With Electronic Scanning
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