| 超声换能器辐射电导测量不确定度分析 |
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| 引用本文： | 李敏毅,吴胜举.超声换能器辐射电导测量不确定度分析[J].压电与声光,2012,34(1):76-80. |
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| 作者姓名： | 李敏毅 吴胜举 |
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| 作者单位： | 1. 华南理工大学电力学院,广东广州,510641
2. 陕西师范大学应用声学研究所,陕西西安,710062 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 利用毫瓦级国家超声功率基准装置对作者研制的标准换能器进行标定.由于测量的结果直接影响超声功率量值传递的准确性,故换能器标定时的准确度要求很高.该文分析了标定过程中超声功率的测量不确定度以及标准换能器辐射电导的不确定度.
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| 关 键 词： | 超声功率 换能器 不确定度 |
Radiation Conductance (Gr) Measurement Uncertainty Analysis of Ultrasonic Transducer |
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| LI Minyi and WU Shengju.Radiation Conductance (Gr) Measurement Uncertainty Analysis of Ultrasonic Transducer[J].Piezoelectrics & Acoustooptics,2012,34(1):76-80. |
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| Authors: | LI Minyi and WU Shengju |
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| Affiliation: | 1.School of Electric Power,South China University of Technology,Guangzhou 510641,China; 2.Applied Acoustics Institute,Shanxi Normal University,Xi’an 710062,China) |
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| Abstract: | The standard transducer developed by the author was calibrated by the use of the national milli-watt ultrasonic power benchmarking device.Since the results of the measurement value transfer directly affected the accuracy of ultrasonic power,the transducer calibration accuracy requirement was very high.This paper analyzed the uncertainty of measurement during the process of calibration and radiation conductance uncertainty of standard transducer. |
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| Keywords: | ultrasonic power power transducer uncertainty |
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