摘要
介绍了声表面波传感器测温原理,并设计了一种基于DSP的无线无源温度测量系统.采用具有低通特性的滑动平均数字滤波算法改进了系统的测量精度.通过在某变电站的现场试验,证明了该系统能够有效实现高压开关柜内多点实时探测,具有良好的抗干扰性和稳定性.
The principle of SAW temperature sensor is introduced firstly, and then this sensor is used to design a wireless-passive temperature measurement system based on DSP. Moving average digital filtering algorithm with a low-pass characteristics is used to improve the measurement accuracy of the system. Finally, a substation field test proves that the system can effectively achieve multi-point real-time detection in high voltage switchgear with good resistance and stability.
出处
《上海电力学院学报》
CAS
2015年第2期183-186,共4页
Journal of Shanghai University of Electric Power
关键词
数字信号处理器
声表面波
温度测量
传感器
digital signal processor
surface acoustic wave
temperature measurement
sensor
