A sensitive interferometric accelerometer
- 1 September 1993
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 64 (9) , 2612-2614
- https://doi.org/10.1063/1.1143878
Abstract
An interferometric accelerometer developed for use in characterizing isolation systems for gravitational wave detectors is described. A Nd:YAG laser is frequency locked to a Fabry–Pérot cavity in which one mirror is flexibly mounted. At 100 Hz the displacement sensitivity is 1.0×10−14 m/√Hz, 100 times more sensitive than the piezoelectric accelerometers normally used for such measurements. The sensitivity of the accelerometer is limited by the frequency noise of the laser.Keywords
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