Development of calibration techniques for ultrasonic hydrophone probes in the frequency range from 1 to 100 MHz.
Development of calibration techniques for ultrasonic hydrophone probes in the frequency range from 1 to 100 MHz.
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DOI：
10.1016/j.ultras.2008.09.011
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发表时间：
2009-03
期刊：
影响因子：
4.2
通讯作者：
El-Sherif, M.
中科院分区：
文献类型：
--
作者：
Umchid, S.;Gopinath, R.;Srinivasan, K.;Lewin, P. A.;Daryoush, A. S.;Bansal, L.;El-Sherif, M.
关键词：
这项工作的主要目标是开发和优化用于高达100 MHz声场测量的超声波水听器探头的校准技术。为了检测亚毫米空间分辨率光纤(FO)传感器的行为，并评估这种传感器作为高频表征超声场的替代工具的必要性，需要一种可靠的、100 MHz的校准方法。此外，有兴趣研究在高强度领域使用FO探头的可行性，例如在HIFU(高强度聚焦超声)应用中使用的FO探头。除了开发和验证新的100兆赫兹校准技术外，这项研究的创新要素还包括实施和测试有效直径约为10μm的FO传感器原型，该传感器在所考虑的频率范围内表现出一致的灵敏度，并且不需要任何高达约75兆赫兹的空间平均校正。给出了校准测量的结果，结果表明，优化的校准技术允许将水听器探头的灵敏度确定为频率的几乎连续的函数，并且非常适合于验证FO传感器的频率响应的一致性。正如预期的那样，校准的总不确定度与频率有关，在40 MHz时约为±12%(±1分贝)，在40至60 MHz时为±20%(±1.5分贝)，在60至100 MHz时为±25%(±2分贝)。这项研究的结果表明，一旦完全开发和校准，组合声光系统将在100 MHz的宽带内构成通用参考工具。
The primary objective of this work was to develop and optimize the calibration techniques for ultrasonic hydrophone probes used in acoustic field measurements up to 100 MHz. A dependable, 100 MHz calibration method was necessary to examine the behavior of a sub-millimeter spatial resolution fiber optic (FO) sensor and assess the need for such a sensor as an alternative tool for high frequency characterization of ultrasound fields. Also, it was of interest to investigate the feasibility of using FO probes in high intensity fields such as those employed in HIFU (High Intensity Focused Ultrasound) applications. In addition to the development and validation of a novel, 100 MHz calibration technique the innovative elements of this research include implementation and testing of a prototype FO sensor with an active diameter of about 10 μm that exhibits uniform sensitivity over the considered frequency range and does not require any spatial averaging corrections up to about 75 MHz. The results of the calibration measurements are presented and it is shown that the optimized calibration technique allows the sensitivity of the hydrophone probes to be determined as a virtually continuous function of frequency and is also well suited to verify the uniformity of the FO sensor frequency response. As anticipated, the overall uncertainty of the calibration was dependent on frequency and determined to be about ±12% (±1 dB) up to 40 MHz, ±20% (±1.5 dB) from 40 to 60 MHz and ±25% (±2 dB) from 60 to 100 MHz. The outcome of this research indicates that once fully developed and calibrated, the combined acousto-optic system will constitute a universal reference tool in the wide, 100 MHz bandwidth.
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DOI：
10.1109/tuffc.2008.619
发表时间：
2008-01-01
影响因子：
3.6
作者：
Cooling, Martin P.;Humphrey, Victor F.
通讯作者：
Humphrey, Victor F.
影响因子：
4.2
作者：
STAUDENRAUS, J;EISENMENGER, W
通讯作者：
EISENMENGER, W
影响因子：
2.4
作者：
Yang, XM;Roy, RA;Holt, RG
通讯作者：
Holt, RG
影响因子：
2.4
作者：
Zhou, Yufeng;Zhai, Liang;Zhong, Pei
通讯作者：
Zhong, Pei
影响因子：
4.2
作者：
Lewin, PA;Mu, C;El-Sherif, M
通讯作者：
El-Sherif, M