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An ultra-long-period seismograph galvanometer

Lehner, Francis E. (1959) An ultra-long-period seismograph galvanometer. Bulletin of the Seismological Society of America, 49 (4). pp. 399-401. ISSN 0037-1106.

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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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Additional Information:Copyright © 1959, by the Seismological Society of America. Manuscript received for publication May 13, 1959. This instrument was constructed in the instrument shop of the Seismological Laboratory, and its success is in large part due to the craftsmanship of Mr. Carl Holmstrom, Mr. David Downing, and Mr. Ivar Sedleniek. Valuable suggestions were made by Dr. Frank Press and by Dr. Hugo Benioff, whose research originally required such an instrument and initiated its design.
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Caltech Division of Geological Sciences925
Issue or Number:4
Record Number:CaltechAUTHORS:20140806-143015477
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48122
Deposited By: George Porter
Deposited On:06 Aug 2014 22:05
Last Modified:03 Oct 2019 07:00

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