Phase-generated-carrier-modulated laser interferometer for measurement of ground vibration on an absolute gravimeter

被引：1
|
作者：
Xiong, Zhenyu [1 ]
Wei, Guo [1 ]
Yu, Xudong [1 ]
Long, Xingwu [1 ]
Guo, Youguang [2 ]
机构：
[1] Natl Univ Def Technol, Changsha 410073, Peoples R China
[2] Natl Inst Metrol, Beijing 100000, Peoples R China
来源：
APPLIED OPTICS | 2020年 / 59卷 / 02期
关键词：
Interferometers;
D O I：
10.1364/AO.59.000285
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This paper presents an innovative interferometer based on the phase-generated-carrier method to meet the requirement of micro-vibration detection on an absolute gravimeter. Our results, including those of both simulation and experiments, verified the feasibility of the interferometer. Based on this interferometer, continuous micro-vibrations are obtained and synchronously compared with the results detected by a 991B seismometer. The interferometer's accuracy reaches 10(-8) m, and the detected vibration frequency is less than 100 Hz. These findings can help broaden the application of interferometers and provide new guidelines for vibration measurement. (C) 2020 Optical Society of America
引用
收藏
页码：285 / 294
页数：10
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