Bulletin of the Seismological Society of America
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Bulletin of the Seismological Society of America; July 1947; v. 37; no. 3; p. 197-215
© 1947 Seismological Society of America
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Differential-motion seismographs*

GUY C. OMER, JR.

DEPARTMENT OF PHYSICS, CALIFORNIA INSTITUTE OF TECHNOLOGY,, PASADENA, CALIFORNIA

Abstract

A group of nonpendular seismographs actuated by the phase differences at two points in the earth's crust are analyzed for their transient and their steady-state behavior. The seismographs considered are the Benioff Linear Strain seismograph, the transversely driven rod seismograph suggested by Benioff, terminated rod seismographs of a new type, and a seismograph utilizing optical interference.

Footnotes

* Manuscript received for publication April 10, 1946.






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