- a device that is placed on or in the ground and used to detect seismic waves.
Origin of geophone
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for geophone
The geophone expert was at his bedside, waiting impatiently.
There was a tense five minutes as the geophone expert listened.
"That's what the geophone man heard," Owens commented to the reporter.
"The vibrodyne machine isn't running," he remarked finally after repeated adjustments of the geophone.
Nothing at all of any value was being recorded by the geophone when Kennedy glanced quickly at his watch.
- An electronic receiver designed to pick up seismic vibrations on or below the Earth's surface and to convert them into electric impulses that are proportional to the displacement, velocity, and acceleration of ground movement. Geophones detect motion in only one direction and are usually used in groups of at least three, oriented at different angles, so that a three-dimensional record of ground movement can be obtained.
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