原文传递 Measurement of Blast Waveforms with Condenser Microphones: Measurement Interpretation and Correction.
题名: Measurement of Blast Waveforms with Condenser Microphones: Measurement Interpretation and Correction.
作者: Gabrielson, T. B.
关键词: Blast waves, Microphones, Pressure measurement, Detonation waves, Explosion effects, Data acquisition, Pressure signatures, Waveforms, Electrostatic microphones, Peak pressure, Detonation waves, Blast effect, Pressure rise-time
摘要: This work evaluated the accuracy of blast-wave measurements using commercial measurement-grade condenser microphones. The principal advantages of measurement microphones are their ease of calibration and wide acceptance as measurement standards in acoustics. A number of special techniques are discussed for improving the results obtained with these microphones. Of particular importance are: (1) the desired resolutions for the measured parameters (peak pressure, rise time, time to zero-crossing, peak under-pressure); (2) the sensors and data-acquisition equipment used; (3) post-measurement corrections and digital correction filters; and, (4) laboratory evaluation compared to field measurements.
报告类型: 科技报告
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