| 干涉法测量压电材料的复压电常数 |
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| 引用本文： | 高西汉,陈尧生.干涉法测量压电材料的复压电常数[J].光学学报,1995,15(11):581-1584. |
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| 作者姓名： | 高西汉 陈尧生 |
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| 作者单位： | 西安电子科技大学技术物理系，中国科学院西安光学精密机械研究所，德国亚琛工业大学电工材料研究所 |
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| 摘 要： | 介绍了采用迈克尔逊干涉仪测量压电材料复压电常数的新方法。干涉仪中一个平反射镜与被测试样粘为一体，另一外与控制压电陶瓷粘为一体。利用光电二极管和两个锁相放大器对干涉图像进行转换和放大测量。
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| 关 键 词： | 光干涉 压电材料 压电常数 |
| 收稿时间： | 1994/7/20 |
Interferometric Method of Measuring Complex Piezoelectric Constants of Piezoelectric Materials |
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| Gao Xihan.Interferometric Method of Measuring Complex Piezoelectric Constants of Piezoelectric Materials[J].Acta Optica Sinica,1995,15(11):581-1584. |
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| Authors: | Gao Xihan |
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| Abstract: | In this paper, a new method of measuring complex piezoelectric constants ofpiezoelectric materials with Michelson interfermeter is presented.The interferometerconsists of two mirrors, one is allached to the sample and the other to the controlledpiezoelectric ceramic, By using photodiode and two phase, lock-in amplifier, theinterference figure is transfered, amplified and measured. A change of sample length dueto converse piezoelectric effect as small as 0.6 pm is detected. In the range of frequence of 2.5 Hz~2.5 kHz and temperature of -60~90 ℃, the d′31, d″31 of PEX5 piezoelectric ceramic of PZT series are measured and discussed. |
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| Keywords: | interference piezoelectric material piezoelectric constant |
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