Detector Vertical Component (additional)

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Item Detector Vertical Component
Item code
Description Condenser Plate Side view, in case
Manufacturer O.S. Petty
Circa 1925
Model
Donor Petty Geophysical
Location North Harris College
Serial number
Taxonomy GSH279

1926 by Petty Geophysical Engineering Company. This unit was smaller, lighter, and more rugged than the prototype detector developed in 1925. The detector, oscillator, amplifier, and batteries are housed in one case. These detectors were used extensively on seismic crews in South America and the U. S. Gulf Coast in the late 1920's. These units were more sensitive than mechanical seismographs and thus smaller charges of dynamite could be used to generate the vibrations needed with seismic exploration.

GSH279.jpg