研制了一種以電荷轉(zhuǎn)移器件(CTD) 為核心,具有頻率特性可隨意調(diào)節(jié)的壓電傳感器頻率特性補償器。論述了補償原理、電路設計及其技術難點和相應的解決方法。理論分析與實驗表明了該補償器的有效性、實用性、先進性。
關鍵詞: 壓電傳感器; 頻率特性; 補償器; 電荷轉(zhuǎn)移器件
Abstract : A compensator of frequency characteristic of piezoelectric sensor is presented. This compensator has the adjustable frequency characteristic arbitrarily based on charge transfer devices (CTD) . The compensating principle and circuit design as well as the key technologies and the corresponding solution methods are discussed. The theoretical analysis and experiments demonstrate that the compensator is very effective on extending the work frequency band of sensor ,as well as advanced and practical.
Key words : piezoelectric sensor ; frequency characteristic ; compensator ; charge transfer devices (CTD)