一種電容式應(yīng)變傳感器設(shè)計(jì)

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摘  要：文章介紹一種通過(guò)電容變化探測(cè)應(yīng)變信號(hào)的傳感器。該傳感器主要通過(guò)改變電容極板間的面積來(lái)獲得電容值的變化，從而測(cè)量應(yīng)變量。為保證傳感器在工作中有較大的電容值變化量，設(shè)計(jì)一種雙電容結(jié)構(gòu)，保證傳感器的靈敏度，該傳感器的檢測(cè)單元包括一個(gè)動(dòng)極板、兩個(gè)定極板和一個(gè)電路組件。

關(guān)鍵詞：可變電容;應(yīng)變;雙電容

中圖分類號(hào)：TP212       文獻(xiàn)標(biāo)志碼：A          文章編號(hào)：2095-2945（2022）06-0123-03

Abstract： A kind of sensor for detecting strain signal by capacitance change is introduced in this paper. The sensor mainly obtains the change of the capacitance value by changing the area between the capacitive plates， so as to measure the strain. In order to ensure that the sensor has a large change of capacitance， a double capacitance structure is designed in order to ensure the sensitivity of the sensor whose detection unit includes a moving plate， two fixing plates and a circuit component.

Keywords： variable capacitor; strain; double capacitance

從日常生活到大型建筑乃至國(guó)防工程的各個(gè)領(lǐng)域，幾乎都離不開(kāi)對(duì)應(yīng)變的檢測(cè)。（剩余2108字）