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- E-ISSN: 1365-2478
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A LOW‐FREQUENCY REFRACTION GEOPHONE*
- Source: Geophysical Prospecting, Volume 3, Issue 2, Jan 1955, p. 168 - 176
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- 27 Apr 2006
Abstract
ABSTRACT
This paper describes a highly portable geophone, designed for large‐scale refraction surveying, which uses a novel suspension system to obtain a natural frequency of about 1.85 c/s. The nominal output is 0.7 volts/cm/second into a 500 ohm load, the damping then being 0.7 of critical. Some typical recorded arrivals obtained with this geophone are illustrated.