Seismic Parameter Measurement Method and Apparatus.
Abstract
The apparatus comprises a geophone connected to a circuitry case containing a battery, a voltage regulator, a solid state preamplifier and amplifier tuned to respond to seismic signals between 2 and 25 Hz. The amplified seismic signals are rectified and applied to a microammeter connected to efficiently respond to pulsations at the step frequency of walking or crawling personnel. The apparatus can be used to measure seismic noise and to determine soil conditions prior to the emplacement of an intrusion detection system. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 20, 1981
- Accession Number
- ADD008714
Entities
People
- Rondald D. San Giovanni
Organizations
- United States Army