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本文绘出了光纤高压大电流传感器的两种检测方案:单路检测系统与双路检测系统。比较了它们的各自特点。分析表明:双路检测系统有较高的信噪比,较强的抗干扰能力,不仅可探测交流大电流,也可用于测量直流大电流,是目前光纤电流传感器信号检测的较好方案之一;单路检测系统具有结构简单、调整方便、对探测器和放大器无特殊要求等优点,在其它光纤传感系统(如光纤电压传感器)中,具有实用意义。
This text has drawn two kinds of detection schemes of the optic fiber high voltage big current sensor: Single-channel detection system and dual-channel detection system. Compare their respective characteristics. The analysis shows that the two-way detection system has higher signal-to-noise ratio and stronger anti-jamming capability. It can not only detect AC high current but also measure DC high current, which is one of the better schemes for signal detection of optical fiber current sensor Single-channel detection system has the advantages of simple structure, convenient adjustment, no special requirements for detectors and amplifiers, and is of practical significance in other optical fiber sensing systems (such as optical fiber voltage sensors).