基于压电叠堆的液体高频正弦压力激励源研制

doi:10.3969/j.issn.1004-132X.2021.01.014

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Abstract The sinusoidal motions of liquid in sealed cavity were driven by piezoelectric stack to realize the sinusoidal changes of pressure in hydraulic cavities. According to the piezoelectric effect and cavity resonance principle, the excitation sources of high frequency sinusoidal pressure with single piezoelectric stack and double piezoelectric stacks were designed, the two devices were compared. The results show that the double piezoelectric stacking device with a novel way of generating sinusoidal pressure may generate a large sinusoidal pressure amplitude and a small sinusoidal distortion. The working frequency of the device is up to 30 kHz. The amplitude and waveform of sinusoidal pressure may be adjusted at the same frequency. The device may meet the measurement and calibration requirements for dynamic pressures of pressure sensors and testing systems.

Key words： piezoelectric stack sinusoidal pressure resonance principle dynamic pressure

PACS:

TB935

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	Articles by authors
	LI Bo1
	YANG Jun1
	ZHANG Heyu1
	ZHANG Zhaojing2
	GONG Zheng3

Cite this article:

LI Bo1,YANG Jun1,ZHANG Heyu1等. Development of Excitation Sources for Liquid High Frequency Sinusoidal Pressure Based on Piezoelectric Stack[J]. China Mechanical Engineering, 2021, 32(01): 111-116,125.

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http://www.cmemo.org.cn/EN/10.3969/j.issn.1004-132X.2021.01.014 OR http://www.cmemo.org.cn/EN/Y2021/V32/I01/111

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