Dubey, P. K. and Jain, A. and Singh, S. (2015) Improved and Automated Primary Ultrasonic Power Measurement Setup at CSIR-NPL, India. Mapan, 30 (4). 231-237. ISSN 0970-3950

PDF - Published Version Restricted to Registered users only Download (1434Kb) | Request a copy

Abstract

Ultrasonic power generated by an ultrasonic transducer must be measured and declared for the ultimate safety of patients. According to IEC-61161 radiation force balance is internationally recommended primary method for measurement of total, time averaged ultrasonic power radiated by transducer. In a manual RFB system, the output of microbalance is recorded manually at no radiation force and after transducer excitation. Manual technique suffers from various errors, such as overshoot due to momentum of target, disturbance due to small tilt in target and buoyancy change of target. The developed automated system provides scope to visualize these effects and enables us to considerably reduce effects of above sources and hence improves uncertainty. In this article developmental details and the functionality of an improved automated system is described.

Item Type:	Article
Uncontrolled Keywords:	Ultrasonic power measurement; Radiation force balance; LabVIEW software
Subjects:	Instruments/ Instrumentation Applied Physics/Condensed Matter
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	28 Sep 2016 05:24
Last Modified:	28 Sep 2016 05:24
URI:	http://npl.csircentral.net/id/eprint/1857

Actions (login required)

View Item