Laser Interferometer for Earth Strain Measurements
- 1 September 1965
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 36 (9), 1352-1355
- https://doi.org/10.1063/1.1719898
Abstract
A laser interferometer for earth strain measurements has been constructed and is described. The apparatus is designed to measure displacements down to small fractions of the laser wavelength. Measurements of length change of the interferometer arm of 10 m length were obtained during normal microseismic activity and following a distant earthquake. Some representative results of this laser application are presented.This publication has 3 references indexed in Scilit:
- Synchronous detection of microwave-modulated incoherent optical carriersProceedings of the IEEE, 1964
- Measurement of earth tides and continental drift with laser interferometerProceedings of the IEEE, 1964
- Frequency Stability of He-Ne Masers and Measurements of LengthPhysical Review Letters, 1963