DISTANCE METER UTILIZING THE INTERMODE BEAT OF A HE-NE-LASER

被引：23

作者：

SETA, K

OISHI, T

机构：

[1] National Research Laboratory of Metrology, Tsukuba, 305

来源：

APPLIED OPTICS | 1990年 / 29卷 / 03期

关键词：

D O I：

10.1364/AO.29.000354

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A distance meter was built utilizing the intermode beat of a He—Ne laser instead of an optical modulater. Its performance was tested at distances between 10 and 1300 m on a 300-m baseline in a tunnel. The resolution. was about 20 ^m and the total uncertainty was within 0.1 mm, if the air was stable. The length of the tunnel was measured by a distance meter, and the annual periodic strain of the tunnel was observed with submillimeter precision. © 1990 Optical Society of America.

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页码：354 / 359

页数：6

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