壓電沖擊振動傳感器的基本原理

　　壓電傳感器用于彎曲、觸覺、振動和沖擊測量。它的基本原理，在過于簡單化的風險，如下：當一個結構時，它的經驗加速度。一個壓電沖擊傳感器，反過來，可以產生物理加速收費。然后，這些屬性組合用于修改響應或減少噪聲和振動。

　　為什么那么重要？因為振動和沖擊可以縮短任何電子和機電系統的壽命。特別是在長時間的振動之后，可以很好地控制導線和導線。焊點可以斷開，PCB的痕跡會因沖擊和脈沖沖擊而輕微撕裂，造成最難調試的系統故障；間歇性故障。

　　本文討論了壓電沖擊和振動傳感器和傳感器技術，專注于提供產品，以及設計的問題和設計技術。

　　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.