Bolsunovskii Mikhail, Dolgikh Grigory, Dolgikh Stanislav, Chupin Vladimir, Shvets Viacheslav, Yakovenko Sergey
Institute of Automation and Control Processes FEB RAS, 690041 Vladivostok, Russia.
V.I. Il'ichev Pacific Oceanological Institute FEB RAS, 690041 Vladivostok, Russia.
Sensors (Basel). 2024 Sep 5;24(17):5788. doi: 10.3390/s24175788.
This paper describes the design and principle of operation of a 20 m laser strainmeter of unequal-arm type created on the basis of a Michelson interferometer and frequency-stabilized helium-neon laser. The interferometry methods used allow the measurement of the displacement of an Earth's crust section on the base of the laser strainmeter with an accuracy of 30 pm in the frequency range from 0 (conventionally) to 1000 Hz. This laser strainmeter, when connected to an accurate time system providing an accuracy of 1 μs, should structurally become a part of the laser interferometric seismoacoustic observatory, consisting of spatially separated laser strainmeters installed in various regions of Russia.
本文描述了一种基于迈克尔逊干涉仪和稳频氦氖激光器制造的不等臂型20米激光应变仪的设计与工作原理。所采用的干涉测量方法能够在频率范围从0（传统意义上）到1000赫兹的情况下，以30皮米的精度测量基于该激光应变仪的地壳区域位移。当该激光应变仪与精度为1微秒的精确时间系统相连时，在结构上应成为激光干涉地震声学观测站的一部分，该观测站由安装在俄罗斯不同地区的空间分离式激光应变仪组成。
