A standard leak hole automatic calibration device is designed using a programmable high-precision electronic soap membrane flowmeter SF-1U and a programmable high-precision pressure controller PPC4,combined with software optimization.After multiple voltage stabilization designs,the fluctuation stability does not exceed 1%within the test pressure range of-0.1～1.6 MPa;Within the leakage rate range of 0.1～10 mL/min,the repeatability shall not exceed 0.5%.In addition,the device can automatically process data and generate original records after calibration,saving manpower and time,and reducing the uncertainty of calibration results.
standard leakage holeautomatic calibration deviceelectronic soap membrane flowmeterpressure controller
国家科技期刊平台
NSTL
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