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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...
DOI: 10.1016/S0301-5629(01)00401-X
Abstract
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%.
| Item Type: | Article |
|---|---|
| ISSN: | 0301-5629 |
| Uncontrolled Keywords: | Ultrasonic power measurement, radiation force balance |
| Subjects: | Technology > Medicine and Health |
| Group: | School of Health and Social Care |
| ID Code: | 1001 |
| Deposited By: | INVALID USER |
| Deposited On: | 02 May 2007 |
| Last Modified: | 07 Mar 2013 14:35 |
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