Title

Ultrasonic interferometers

Document Type

Article

Publication Date

2000

Abstract

The wavelength of ultrasonic waves is obtained with interferometers, in which the path length difference from two sources to the receiver is varied. Nine different interferometers are described, all using 40‐kHz ultrasonic transducers and inexpensive reflectors.

Journal

The Physics Teacher

Volume

36

First Page

249

Last Page

252