Duck, F.A. and Lunt, M. J., 2001. Ultrasonic power balances-effect of a coupling window on the power measured from physiotherapy ultrasound units. Ultrasound in Medicine & Biology, 27 (8), pp. 1127-1132.
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Official URL: http://www.sciencedirect.com/science?_ob=ArticleUR...
The output from physiotherapy ultrasound (US) probes is usually measured using a radiation force balance. Some balances are sealed and incorporate a membrane coupling window. The probes are highly resonant, and the output may be affected by changes in acoustic loading caused by the membrane. A model has been developed to examine this effect, and predicts that a polythene membrane 100-μm thick can change the output power by up to 17%.
|Uncontrolled Keywords:||Ultrasonic power measurement, radiation force balance|
|Subjects:||Technology > Medicine and Health|
|Group:||School of Health and Social Care|
|Deposited By:||INVALID USER|
|Deposited On:||02 May 2007|
|Last Modified:||07 Mar 2013 14:35|
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