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Bulletin of the Seismological Society of America; October 1959; v. 49; no. 4; p. 399-401
© 1959 Seismological Society of America
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An ultra-long-period seismograph galvanometer

FRANCIS E. LEHNER

CALIFORNIA INSTITUTE OF TECHNOLOGY,, PASADENA, CALIFORNIA.

Abstract

A brief description is given of a galvanometer of longer than ordinary period. Mention is made of some of the details, precautions, and techniques pertaining to its construction, testing, and operation. The discussions are applicable to galvanometers of extended period in general.




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Home page
 Bulletin of the Seismological Society of AmericaHome page
R. GILMAN
Report on some experimental long-period seismographs
Bulletin of the Seismological Society of America, October 1, 1960; 50(4): 553 - 559.
[Abstract] [PDF]


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