Sonic gas pressure gauge
作者： Bernhard R. Tittmann
DOI: 10.1121/1.399161
关键词: Gauge (firearms) 、 Range (particle radiation) 、 Acoustics 、 Vibration 、 Gas pressure 、 Transducer 、 Ultrasonic sensor 、 Amplitude 、 Materials science
摘要: A method and an apparatus are provided for measuring the pressure of a gas within sealed vessel. sonic transducer is used to apply oscillating force surface The frequency ultrasonic wave swept through range which causes resonant vibration in receiving measures amplitude resultant at vessel reveals as peaks sweep. obtained depends upon composition gas, its temperature, shape confining These relationships can be predetermined empirically so that inside calculated when known. output receiver fed into computer programmed calculate based these stored computer.
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