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 |