Under normal conditions,the pressure of gas cylinders is measured at the opening on the outlet pipe of the gas cylin-ders.For the high-pressure gas cylinders in long-term storage,there is a hidden danger of pressure leakage at the opening part.The contactless pressure measurement system of the cylinder is analyzed and studied to overcome the problem of open pressure leakage of the cylinder.Based on the deformation of the cylinder wall under pressure,the calculation model of the strain variable relationship be-tween the cylinder wall and internal pressure is established through the key technology of strain measurement of the cylinder wall.The relevant data parameters under different temperatures and pressures are accumulated through multiple experiments.The pressure formula with temperature compensation is fitted to the data model,and the portable tester is programmed to realize the contactless pressure measurement of the high-pressure gas cylinder under the condition of not contacting the medium,and it meets the application demands for random measurement of gas cylinders during long term storage under high pressure conditions.
关键词
气瓶/应变传感器/温度传感器/压力/贮存/非接触压力/便携式测试仪
Key words
gas cylinders/strain sensor/temperature sensor/pressure/storage/contactless pressure/portable test equipment
维普
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