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Features of Bonded Interface and Impedance and Power of PZT Transducer

机译:键合界面的特性以及PZT传感器的阻抗和功率

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A series of experiments is carried out on the characteristics at the wedge bond interface. Bond lift-off characteristics are studied by using Scanning Electron Microscope with EDS-test. The characteristics of input impedance of PZT transducer are analyzed by the driving electric signal measured by Oscilloscope. Results show that the pattern of partially bonded material at the interface of ultrasonic wedge bonds exposed by peeling underdeveloped bonds simulates a torus with an unbonded central region. For the same machine variables, the input impedance and transforming power of the first wedge bond are greater than that of the second wedge bond. Some conclusions drawn by analyzing the input impedance and the power of PZT consist with the results gotten by testing microstructures at the interface.
机译:针对楔形键界面的特性进行了一系列实验。使用带有EDS测试的扫描电子显微镜研究了胶结剥离特性。通过示波器测量的驱动电信号来分析PZT换能器的输入阻抗特性。结果表明,通过剥离欠发达的键而暴露的超声楔形键界面处的部分键合材料的图案模拟了具有未键合中心区域的环面。对于相同的机器变量,第一楔形键的输入阻抗和变换功率大于第二楔形键的输入阻抗和变换功率。通过分析PZT的输入阻抗和功率得出的一些结论与通过测试界面的微结构得到的结果相一致。

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