A kind of vibration acceleration - frequency detecting device is described, which is a new style low power consumption handy device based on ADXL50 acceleration sensor.
本文主要介绍了一种应用加速度传感器adxl50设计的新型便携式、低功耗的振动加速度-频率检测装置。
It provides a theoretical basis for harvesting the low-frequency vibration energy in environment and designing self-powered device of sensor network.
为采收环境低频振动能量，实现网络传感器自供电装置提供了设计的理论依据。
The types, principles, features, and applications of displacement sensor used in ultra-low frequency active vibration isolation control are introduced.
介绍了超低频主动隔振控制中常用的位移传感器的类型、工作原理、结构特点及适用范围。
Method: to use Model HKY06A heart vibration sensor for the detection of the heart sound, and to form the heart sound envelope with two way hardware rectification and low frequency passed filter.
方法：使用HKY06 A心音传感器提取心音信号，使用双向检波及低通滤波实现心音包络的提取。
Method: to use Model HKY06A heart vibration sensor for the detection of the heart sound, and to form the heart sound envelope with two way hardware rectification and low frequency passed filter.
方法：使用HKY06 A心音传感器提取心音信号，使用双向检波及低通滤波实现心音包络的提取。
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