A LASER EARTH STRAIN METER

被引：19

作者：

BERGER, J

LOVBERG, RH

机构：

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1969年 / 40卷 / 12期

关键词：

D O I：

10.1063/1.1683864

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A laser interferometer for the study of earth strain is described. Changes in the length of an 800 m arm are measured by counting fringes in the interference pattern with a least count of 4×10-10. The output is linear and has a flat response from dc to 1 MHz and a dynamic range of 106. The laser wavelength is controlled by reference to a passive optic resonator contained in a stable environment. The wavelength stability is a few parts in 1010 for periods up to a laser lifetime (∼3000 h). © 1969 The American Institute of Physics.

引用

页码：1569 / &

共 7 条

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[2] BENIOFF H, 1959, GEOL SOC AM BULL, V70, P1019
[3] HALL JL, 1969, LASER APPLICATIONS G
[4] SASSA K, 1951, INT ASS GEOD BRUSSEL
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[J]. EARTH AND PLANETARY SCIENCE LETTERS, 1968, 4 (06) : 436 - &
[6] ONE THOUSAND METER LASER INTERFEROMETER
VALI, V
BOSTROM, RC
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1968, 39 (09) : 1304 - &
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