綜述了光纖電壓傳感器近年來國內(nèi)外的最新研究進(jìn)展,包括可用于SF6 絕緣高壓開
關(guān)的光纖電壓傳感器、頻率調(diào)制型的光纖電壓傳感器以及光控靈敏度的光纖電壓傳感器。介紹了國內(nèi)在光纖電壓傳感器方面的研究進(jìn)展,包括以DSP 為信號處理芯片的BGO 晶體的光纖電壓傳感器,以及應(yīng)用光纖傳感機(jī)理來測試脈沖電壓和電場的方法,并對光纖電壓互感器暫態(tài)信號處理的原理進(jìn)行了研究,試驗證明可以滿足繼電保護(hù)的要求。
關(guān)鍵詞: 　光纖; 傳感器; 電光效應(yīng)
Abstract : 　Recent advances in fiber2optic voltage sensors ( FOVSs) are presented ,such as FOVSs for SF6 insulating high voltage switches ,f requency2modulated FOVSs ,and oplically cont rolled FOVSs. Progress in research on FOVSs in our own count ry is int roduced including FOVSs using DSP as a signal processing chip on BGO crystal , and method for measuring impulse voltage and elect ric field based on mechanism of fiber2optic sensing. The concept of instantaneous signal processing for fiber2 optic voltage intersensors is investigated. The experiment result shows that it can meet the needs for relay protection.
Key words : 　fiber optic ; sensor ; elect ro2optic effect