YANG Jun, SHI Bo, FAN Shangchun, LI Cheng, LI Bo, HUANG Riheng. Liquid high pulse pressure calibration by laser interferometry[J]. Explosion And Shock Waves, 2018, 38(3): 572-578. doi: 10.11883/bzycj-2016-0280
Citation:
YANG Jun, SHI Bo, FAN Shangchun, LI Cheng, LI Bo, HUANG Riheng. Liquid high pulse pressure calibration by laser interferometry[J]. Explosion And Shock Waves, 2018, 38(3): 572-578. doi: 10.11883/bzycj-2016-0280
YANG Jun, SHI Bo, FAN Shangchun, LI Cheng, LI Bo, HUANG Riheng. Liquid high pulse pressure calibration by laser interferometry[J]. Explosion And Shock Waves, 2018, 38(3): 572-578. doi: 10.11883/bzycj-2016-0280
Citation:
YANG Jun, SHI Bo, FAN Shangchun, LI Cheng, LI Bo, HUANG Riheng. Liquid high pulse pressure calibration by laser interferometry[J]. Explosion And Shock Waves, 2018, 38(3): 572-578. doi: 10.11883/bzycj-2016-0280
In order to achieve traceable dynamic pressure measurement in the liquid pulse pressure calibration, a dynamic pressure measurement method by laser interferometry based on Newton's second law is used. The pulse pressure is generated by a drop mass' impact on the piston in the liquid cavity to calibrate the amplitude sensitivity of the piezoelectric sensor. The amplitude of the pulse pressure is calculated from the mass and the mass' acceleration measured by the laser interferometer. Theoretical and experimental analysis of the pressure distribution in the pressure cavity, the acceleration distribution in the mass and the frictions are done, and then the measurement uncertainty of the piezoelectric pressure sensor's amplitude sensitivity calibration is analyzed. The measurement range of the calibration device is (10-500) MPa and the extend uncertainty is less than 1.8%.
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