# Absolute velocity measurement using ultrasonic spectrometer

Banerjee, S and Gunasekaran, MK and Raychaudhuri, AK (1989) Absolute velocity measurement using ultrasonic spectrometer. In: National Symposium on Acoustics '89, 14-16 December 1989, Calcutta, India, pp. 336-338.

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## Abstract

A pulsed ultrasonic phase sensitive superheterodyne spectrometer which is normally used for the precise measurement of relative change in sound velocity $\Delta C$, by measuring the phase change $\varphi$ while travelling in the sample is used for absolute velocity measurement. The error associated with the measurement is also discussed in detail. The experimental results for typical samples are presented.

Item Type: Conference Paper Acoustical Society of India Copyright of this article belongs to Acoustical Society of India. Division of Physical & Mathematical Sciences > Physics 26 Oct 2007 18 Jan 2012 09:47 http://eprints.iisc.ac.in/id/eprint/11363