Laser heterodyne detection of slowly varying displacements
- 1 January 1977
- journal article
- Published by IOP Publishing in Journal of Optics
- Vol. 8 (1) , 37-40
- https://doi.org/10.1088/0150-536x/8/1/004
Abstract
A new interferometric technique has been developed for measuring the arbitrary slow displacements down to angstrom range. The technique, utilizing a differential type interferometer, is more stable to atmospheric fluctuations than conventional interferometers. The measured displacements are quantitatively confirmed by a well-known piezoelectric constant.Keywords
This publication has 10 references indexed in Scilit:
- New interferometric method for piezoelectric measurementsReview of Scientific Instruments, 1975
- Effects of surface roughness of a moving test body on laser-interferometric displacement measurementsOptics Communications, 1975
- Photodepression in As–S thin filmsJournal of Applied Physics, 1974
- Laser heterodyne measurement of small arbitrary displacementsOptics Communications, 1974
- Optical detection of amplitude and phase of mechanical displacements in the Åstrom rangeOptics Communications, 1974
- A frequency-shifted laser interferometer for the study of small dynamic motions. Analytical treatmentOptics Communications, 1973
- Measurement of small strain amplitudes in internal friction experiments by means of a laser interferometerJournal of Physics E: Scientific Instruments, 1972
- Measurement of the Phase of Vibrational Displacement by a Laser InterferometerThe Journal of the Acoustical Society of America, 1969
- Measurements of changes in length down to 10-11 cm by a tandem - laser devicePhysics Letters A, 1967
- Piezoelectric transducer materialsProceedings of the IEEE, 1965