FIBEROPTIC PROBE HYDROPHONE FOR ULTRASONIC AND SHOCK-WAVE MEASUREMENTS IN WATER
FIBEROPTIC PROBE HYDROPHONE FOR ULTRASONIC AND SHOCK-WAVE MEASUREMENTS IN WATER
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DOI：
10.1016/0041-624x(93)90020-z
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发表时间：
1993-07-01
期刊：
影响因子：
4.2
通讯作者：
EISENMENGER, W
中科院分区：
文献类型：
--
作者：
STAUDENRAUS, J;EISENMENGER, W
针对碎石机的声输出测量，一种新的光纤探头水听器克服了大部分的问题，在非线性超声和冲击波领域的压电水听器技术的使用。光纤原理允许极宽的带宽（大于1 GHz）和上级电磁屏蔽。与现有的水听器相反，在水-二氧化硅界面处的高空化阈值提供了对强稀疏脉冲压力的不失真检测。考虑到纯压缩有很好的协议之间的最大脉冲压力来自光纤水听器理论和相应的振幅从声学校准PVDF膜和针水听器。
Aimed at lithotripter acoustic output measurements, a new fibre-optic probe hydrophone overcomes most of the problems involved with the use of piezoelectric hydrophone technology in non-linear ultrasonic and shock-wave fields. The fibre-optic principle allows for extremely wide bandwidth (larger than 1 GHz) and superior electromagnetic shielding. Contrary to hitherto existing hydrophones a high cavitation threshold at the water-silica interface provides undistorted detection of strong rarefractional pulse pressures. Considering pure compression there is good agreement between maximum pulse pressure derived from fibre-optic hydrophone theory and the corresponding amplitudes obtained from acoustically calibrated PVDF membrane and needle hydrophones.