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基于无线通信技术,研究了一种应用于检测电力设施安全性的无线光纤温度传感系统。系统采用光纤传感技术进行温度监测,可以实现具有组网灵活、实时监测等特点的安全传感网络。传感信号处理包括光电转换、前置放大和窄带滤波等电路系统构成,可实现微弱的光电信号的检测,并采用了无线的方式进行传感与控制信号的传输,从而实现对大范围区域的温度监测。实验结果表明,测试范围能达到-20~80℃,准确性在±1.0℃以内,能够满足实际应用的需求。
Based on wireless communication technology, a wireless optical fiber temperature sensing system for detecting the safety of power facilities is studied. The system uses optical fiber sensing technology for temperature monitoring, which can realize the safe sensing network with the characteristics of flexible networking and real-time monitoring. Sensing signal processing, including photoelectric conversion, preamplifier and narrowband filter circuit system, etc., can detect weak optical signals, and the use of wireless means for sensing and control signal transmission, in order to achieve a wide range of areas Temperature monitoring. The experimental results show that the test range can reach -20 ~ 80 ℃, accuracy within ± 1.0 ℃, to meet the practical application needs.