压电冲击振动传感器的基本原理

　　压电冲击振动传感器的基本原理

　　压电传感器用于弯曲、触觉、振动和冲击测量。它的基本原理，在过于简单化的风险，如下：当一个结构时，它的经验加速度。一个压电冲击传感器，反过来，可以产生物理加速收费。然后，这些属性组合用于修改响应或减少噪声和振动。

　　为什么那么重要？因为振动和冲击可以缩短任何电子和机电系统的寿命。特别是在长时间的振动之后，可以很好地控制导线和导线。焊点可以断开，PCB的痕迹会因冲击和脉冲冲击而轻微撕裂，造成最难调试的系统故障；间歇性故障。

　　本文讨论了压电冲击和振动传感器和传感器技术，专注于提供产品，以及设计的问题和设计技术。

　　How it works

　　The piezoelectric effect was discovered by Pierre and Jacques Curie in the latter part of the 19th century. They discovered that minerals such as tourmaline and quartz could transform mechanical energy into an electrical output. The voltage induced from pressure （Greek： piezo） is proportional to that applied pressure， and piezoelectric devices can be used to detect single-pressure events as well as repetitive events.

　　Still， the ability of certain crystals to exhibit electrical charges under mechanical loading was of no practical use until very-high-input impedance amplifiers enabled engineers to amplify the signals produced by these crystals.