کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10690625 | 1019281 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparison of laser interferometry and radiation force method of measuring ultrasonic power
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
آکوستیک و فرا صوت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Comparison of laser interferometry and radiation force method of measuring ultrasonic power Comparison of laser interferometry and radiation force method of measuring ultrasonic power](/preview/png/10690625.png)
چکیده انگلیسی
The aim of this paper is to compare two different methods for the calculation of the ultrasonic output power of underwater transducers: the radiation force balance, which is the standard method, and the laser heterodyne interferometry, which is rather used to depict displacement or velocity distributions of the acoustic field. Here it is shown that the latter can also be used to calculate the acoustic time-average power with an uncertainty of about 22%, the radiation force balance giving an uncertainty of 12% (with 95% confidence). The interferometry experiments performed with two transducers working at 2.25Â MHz and 8.25Â MHz showed that they produce different acoustic fields (respectively Gaussian and Lorentz-sigmoidal distributions). Taking into account the acoustic field profiles, the acoustic time-average power from interferometry was calculated. It was found very similar to the time-average power measured with the radiation force balance in the plane-wave assumption.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ultrasonics - Volume 43, Issue 9, October 2005, Pages 769-774
Journal: Ultrasonics - Volume 43, Issue 9, October 2005, Pages 769-774
نویسندگان
Guillaume Madelin, Bernard Hosten, Christine Biateau, Charles Mougenot, Jean-Michel Franconi, Eric Thiaudière,