Acoustic interferometer

{{Short description|Instrument that measures acoustic properties}}

An acoustic interferometer is an instrument that uses interferometry to measure the physical characteristics of sound waves in a gas or liquid. It may be used to measure velocity, wavelength, absorption, or impedance of the sound waves. The principle of operation is that a vibrating crystal creates ultrasonic waves that are radiated into the medium being analyzed. The waves strike a reflector placed parallel to the crystal. The waves are then reflected back to the source and measured.

References

{{cite journal |vauthors=Inoue N, Hirai M, Hasegawa T, Matsuzawa K |title=A new ultrasonic interferometer for velocity measurement in liquids using optical diffraction |journal=J. Phys. D: Appl. Phys. |volume=19 |issue=8 |pages=1439–1447 |year=1986 |doi=10.1088/0022-3727/19/8/012 |url=http://www.iop.org/EJ/abstract/0022-3727/19/8/012 |bibcode = 1986JPhD...19.1439I |url-access=subscription }}
{{cite journal |last1=Sukatskas |first1=V.A. |last2=Voleishis |first2=A.P. |last3=Stankyavichyus |first3=É.V. |last4=Armoshka |first4=V.K. |title=Density measurement of a liquid with an ultrasonic interferometer of constant length |journal=Measurement Techniques |volume=31 |issue=11 |pages=1126–9 |year=1988 |doi=10.1007/BF00864320 |s2cid=119854695 }}
{{cite journal | pmc = 285746 | year = 1966 | last1 = Gucker | first1 = F. T. | title = A Frequency-Modulated Ultrasonic Interferometer: Adiabatic Compressibility of Aqueous Solutions of Nacl and Kcl at 25°C | journal =Proc. Natl. Acad. Sci. U.S.A. | volume = 55 | issue = 1 | pages = 12–19 | last2 = Chernick | first2 = C. L. | last3 = Roy-Chowdhury | first3 = P | pmid = 16578624 | doi=10.1073/pnas.55.1.12|bibcode = 1966PNAS...55...12G | doi-access = free }}

Category:Acoustics

Acoustic interferometer

See also

References