小型、新型汽車、自動(dòng)化和醫(yī)療應(yīng)用的力傳感器解決方案

　　推還是拉？可能的話，如果是動(dòng)作，而場(chǎng)是電子學(xué)，則需要一個(gè)力傳感器。簡(jiǎn)單地說，力傳感器是將機(jī)械力輸入轉(zhuǎn)換成電輸出信號(hào)的傳感器。壓電式力傳感器用于諸如沖擊、高速壓縮、振蕩和張力等測(cè)量。

　　施加在傳感元件上的力影響材料的原子結(jié)構(gòu)，導(dǎo)致電荷和輸出信號(hào)的分離。力傳感器用于各種汽車應(yīng)用，如剎車、氣囊、速度控制、懸架和變速器。他們有廣泛的醫(yī)療、游戲、工業(yè)和航空航天用途。

　　有許多類型的傳感器測(cè)量力，傳感器內(nèi)的傳感器檢測(cè)事件的力量分為三大類：

　　應(yīng)變計(jì)荷重傳感器

　　壓電晶體

　　通過壓力的測(cè)量

　　應(yīng)變式稱重傳感器是最常用的力傳感器。應(yīng)變計(jì)響應(yīng)于所處的應(yīng)變，而元件的形狀和彈性則構(gòu)成施加力產(chǎn)生的應(yīng)變的大小。應(yīng)變計(jì)包括電阻應(yīng)變片、箔應(yīng)變計(jì)、薄膜應(yīng)變計(jì)、半導(dǎo)體應(yīng)變計(jì)和金屬絲應(yīng)變計(jì)。應(yīng)變計(jì)是用來測(cè)量靜力的。

　　Piezoelectric crystal force transducers are used with a charge amplifier to integrate the electric charges formed on a crystal surface to a given and measurable signal proportional to the force applied. These sensors are unique in that they are active sensors that do not require a power supply， and signals are easily generated without causing geometric changes to the force measurement route. They have a high-frequency response capability that makes them suitable for dynamic measurement， but because of leakage of charge from the charge amplifier， also called drift， they cannot perform static measurements accurately. They have small dimensions and can operate well within a wide temperature range， and are typically used to measure oscillation， impact， and high-speed tension and compression.