DUBEY, P. K. and RAJAGOPALAN, S. and VYAGHRA, V. R. and PENDSEY, V. M. and SHARMA, S. J. (2008) High Resolution Ultrasonic Attenuation Measurement in Pulse-echo Setup. MAPAN - Journal of Metrology Society of India, 23 (4). pp. 245-252. ISSN 0970-3950

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In the present work, a new technique for ultrasonic attenuation measurement in pulse echo setup is designed using off the shelf components. The technique is based on the comparison of echo amplitudes with a programmable reference voltage generated by the personal computer. The designed circuit can measure the echo amplitudes up to seven echoes with a resolution of 4mV, which is sufficient for estimation of ultrasonic attenuation. It does not require the fast analog to digital converters. A program has been developed in "C" to record echo amplitudes and display ultrasonic attenuation on screen. The instrument developed is a stand alone system and does not require any other instrument except PC. The developed technique has been tested for its functionality on some standard liquids.

Item Type: Article
Additional Information: Copyright for this article belongs to M/s Metrology Society of India.
Subjects: Physics
Depositing User: Ms Neetu Chandra
Date Deposited: 10 Mar 2015 05:59
Last Modified: 10 Mar 2015 05:59
URI: http://npl.csircentral.net/id/eprint/1062

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