| 摘要 |
The proposed device for testing bimorph piezoelectric elements contains a bimorph piezoelectric transformer with two signal electrodes and one common electrode, an oscillator, and a measuring unit. The first signal electrode is connected to the input of the oscillator, and the second signal electrode is connected to the input of the measuring unit. The piezoelectric element to be controlled is connected to the common electrode. The output resistance of the piezoelectric transformer at the frequency that is equal to the resonance frequency of the piezoelectric element is too mach less than the input resistance of the piezoelectric element at the resonance frequency.
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