WBV/ I 121 高速寬帶跟蹤型電量隔離傳感器， 是針對高壓、大電流等強電， 或負載能力很差的弱電， 或幅值很小的信號， 為克服其干擾、不宜直接與系統連接而設計的， 分電壓隔離或電流隔離2 類。其工作原理是： 當電壓（ 電流） 輸入信號送至輸入電路后， 被轉換成標準電壓， 并賦予較強的驅動能力； 光電隔離電路實現輸入信號的線性變換及隔離處理； 輸出電路將信號放大， 輸出具有較強驅動能力的標準電壓以跟
蹤輸入信號。傳感器內部還配備了DC/ DC 轉換器， 從輔助電源+E 提取能量供輸入電路使用。并提供了傳感器輸出端接至后續設備的高速A/ D 等電路，信號由計算機等控制采樣、處理，以及相應傳遞函數的應用示例。
關 鍵 詞 ： 電量傳感器； 寬帶跟蹤； 原理； 應用
Abstract: Aiming at the high voltage, strong current, weak-over-load feeble sign, small-amplitude sign, overcoming the system disturb, WBV/ I121 electrical isolation with high-speed wide band track sensor is designed. The sensor is divided into current isolation and voltage isolation two classes. The working principium is: the voltage (current) sign is sent to the input circuit, it is transformed to standard voltage (current) sign, and has powerful drive power. The linear transform of the input sign and isolation processing is achieve d in photoelectric isolation circuit. The output circuit magnifies the sign and outputs the standard
sign or track sign. The sensor that has DC/ DC transformer supplies power that is obtained from additional electrical source to the input circuit. The join circuit between the output port of sensor and the high-speed A/ D interface, the sign sampling and sign processing with computer, and the application example for correlative transfer function are presented.
Key Words: Electrical isolation sensor; Wide band track; Principium; Application