Wong, George S. K. Institute for National Measurement Standards, National Research Council, Ottawa, Canada.
Pierce, Allan D. Department of Aerospace and Mechanical Engineering, Boston University, Boston, Massachusetts.
Madanshetty, Sameer I. Department of Aerospace and Mechanical Engineering, Boston University, Boston, Massachusetts.
Last reviewed:October 2019
- Operating principles
- Wavelength and sound-speed measurement
- Absorption measurement
- Related Primary Literature
- Additional Reading
An instrument that is sensitive to the interference of two or more acoustic waves. It provides information on acoustic wavelengths that is useful in determining the velocity and absorption of sound in samples of gases, liquids, and materials, and it yields information on the nonlinear properties of solids.
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