Measurement of Blast Waveforms with Condenser Microphones: Measurement Interpretation and Correction

Abstract

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.

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Document Details

Document Type
Technical Report
Publication Date
Jul 02, 2018
Accession Number
AD1064218

Entities

People

  • Thoams B. Gabrielson

Organizations

  • Pennsylvania State University Applied Research Laboratory

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Accuracy
  • Acoustic Measurement
  • Acoustics
  • Acquisition
  • Blast
  • Blast Waves
  • Circuit Boards
  • Data Acquisition
  • Explosions
  • Explosives
  • Microphones
  • Plastic Explosives
  • Pressure Measurement
  • Signal Processing
  • Standards
  • Transducers
  • Waveforms

Fields of Study

  • Physics

Readers

  • Aerospace Test and Evaluation
  • Fluid Dynamics.
  • Speech Processing/Speech Recognition.