An Acoustic Ground Impedance Measurement
Abstract
A measurement of the acoustic ground impedance was made on soil composed of sand and clay covered by splotchy amounts of long grass. A sound pressure-volume velocity device was used to make the measurement. The real part of the ground impedance ranged from 46,662 Pa.s/cu m at 20Hz to 3,076 Pa.s/cu m at 260Hz. The magnitude of the imaginary part of the ground impedance ranged from 66,974 Pa.s/cu m at 20Hz to 4,005 Pa.s/cu m at 260Hz. These data are available to any interested research in the field of sound propagation.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 2004
- Accession Number
- ADA428168
Entities
People
- John D. Williams
Organizations
- United States Army Research Laboratory