Abstract

A simple and convenient method is described for measuring the amplitude of vibration of a quartz bar crystal excited piezoelectrically. A silvered face of the quartz bar is substituted for the movable mirror of a Michelson interferometer. White light fringes are employed in the form of a narrow band. When the crystal is made to vibrate the narrow band separates into two bands the separation of which is proportional to the amplitude.

© 1934 Optical Society of America

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Corrections

Samuel H. Cortez, "Erratum: Interferometer Method for Measuring the Amplitude of Vibration of Quartz Bar Crystals," J. Opt. Soc. Am. 24, 194-194 (1934)
http://proxy.osapublishing.org/josa/abstract.cfm?uri=josa-24-7-194

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