相关实验视频

Updated: Sep 24, 2025

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

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

Published on: August 15, 2014

用于近乎动态无噪声生物电子产品的皮式选择性频率阻尼器

Byeonghak Park¹, Joo Hwan Shin¹, Jehyung Ok¹

¹School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea.

Science (New York, N.Y.)

|May 5, 2022

概括

这项研究引入了一种新型的水凝阻尼器,可以选择性地过出生物电子信号中的运动器件. 这种生物灵感材料提高了高级患者监测信号质量,

科学领域:

生物电子
生物材料科学
信号处理

背景情况:

持续监测机械和电生理信号对于生物电子的患者护理至关重要.
患者的运动,如行走和呼吸 (低于30 Hz),引入污染信号的工件.
使用带通波器的现有删除方法可能会导致有价值的信号数据丢失.

研究的目的:

在生物电子信号中开发一种基于材料的新型解决方案.
克服可能导致信号损失的传统信号处理过器的局限性.
提高获得的患者信号质量,用于先进的生物电子应用.

主要方法:

由蜘蛛解剖学启发的粘性凝-素水凝阻尼器的开发.
研究水凝的依赖频率的相位过渡特性.
低频噪声和高频信号传输的选择性抑制.

主要成果:

水凝阻尼器表现出频率依赖的相位过渡,在状和玻璃状状态之间过渡.
这种状状态有效地抑制低频机械噪声.
玻璃状状态允许传输所需的高频生物电子信号,保持信号完整性.

结论:

粘弹性水凝阻尼器作为一个可适应的,基于材料的带通波器.
这种新的方法可以选择性地去除动态机械噪声,从而提高信号质量.
该技术可以在生物电子学中获得高质量的信号,同时尽量减少复杂的信号处理.

更多相关视频

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

Microfabricated Post-Array-Detectors mPADs: an Approach to Isolate Mechanical Forces

Microfabricated Post-Array-Detectors mPADs: an Approach to Isolate Mechanical Forces

Published on: October 1, 2007

相关概念视频

Magnetic Damping

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...