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Updated: Jul 6, 2026

Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators
11:44

Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators

Published on: August 15, 2014

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带有双S执行器的悬臂隔膜压电MEMS扬声器的SPL和THD改进

Qincheng Zheng1,2, Ke Cao1,2, Xudong Ma1,2,3

  • 1School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing, China.

Microsystems & nanoengineering
|September 4, 2025
PubMed
概括

这项研究引入了一种新的压电MEMS扬声器设计,使用双S执行器来克服声压水平 (SPL) 和总波扭曲 (THD) 的限制. 创新的设计显著提高了音频性能,特别是在更高的频率.

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Experiments on Ultrasonic Lubrication Using a Piezoelectrically-assisted Tribometer and Optical Profilometer

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Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics10:39

Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics

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相关概念视频

Magnetic Damping01:17

Magnetic Damping

Eddy currents can produce significant drag on motion, called magnetic damping. For instance, when a metallic pendulum bob swings between the poles of a strong magnet, significant drag acts on the bob as it enters and leaves the field, quickly damping the motion.
If, however, the bob is a slotted metal plate, the magnet produces a much smaller effect. When a slotted metal plate enters the field, an emf is induced by the change in flux; however, it is less effective because the slots limit the...