Acoustic Measurement Using Photon Correlation Spectroscopy

J. P. Sharpe; C. A. Greated

doi:10.1117/12.941474

10 September 1987 Acoustic Measurement Using Photon Correlation Spectroscopy

J. P. Sharpe, C. A. Greated

Proceedings Volume 0808, Inverse Problems in Optics; (1987) https://doi.org/10.1117/12.941474
Event: Fourth International Symposium on Optical and Optoelectronic Applied Sciences and Engineering, 1987, The Hague, Netherlands

Abstract

An investigation of Laser Doppler Anemometry (L.D.A.) for the measurement of acoustic velocity fields using the photon correlation method of signal analysis has been made. It is shown how estimates of velocity amplitudes can be obtained for the cases of single tone and band limited noise fields. Measurements made in a travelling wave tube are presented and are shown to compare well with microphone measurements. A discussion is also made of the measurement of complex impedances and possible industrial uses of the technique are mentioned.

Citation Download Citation

J. P. Sharpe and C. A. Greated "Acoustic Measurement Using Photon Correlation Spectroscopy", Proc. SPIE 0808, Inverse Problems in Optics, (10 September 1987); https://doi.org/10.1117/12.941474

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