A polarization-based optical fibre vibrometer

被引：9

作者：

Egan, DA

James, SW

Tatam, RP

机构：

[1] Optical Sensors Group, Ctr. for Photonics and Optical Eng., Cranfield University, Cranfield

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 1997年 / 8卷 / 03期

关键词：

HETERODYNE INTERFEROMETER; VIBRATION MEASUREMENT;

D O I：

10.1088/0957-0233/8/3/020

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A fibre optic heterodyne vibrometer configuration based on the use of birefringent optical fibre components is demonstrated. The heterodyne processing is moved to the receiving section of the interferometer, reducing the optomechanical stability requirements of the system and enabling optimization of the reference to signal beam ratio intensity. The instrument can be configured to have minimum down lead sensitivity. The technique was demonstrated with a laser diode at 833 nm with a minimum detectable phase change of 12 mu rad Hz(-1/2) obtained at 5 kHz.

引用

页码：343 / 347

页数：5

共 25 条

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Buchhave P., 1975, Danske Industri Syndikat A/S Information, P15

[2]

*CAN INSTR RES LTD, 1995, PROD DAT 919P FIBR Q

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