基于PQCR-PSL的桥梁振动无线监测系统

基于压电式石英晶体谐振器与平面螺旋电感串联结构(PQCR-PSL),结合现场可编程门阵列(FPGA)、无线传感器网络(WSNs)和C#等技术,将一种结构简单、以频率为输出的数字化石英晶体电感传感器应用到桥梁振动等低频测量中,并以此为传感器探头搭建了整套无线监测系统.系统主要由传感器探头、FPGA系统、ZigBee网络、C#位机4部分组成,具有结构简单、稳定性好、数字化输出等特点,实现了对低频振动信号的非接触式无线实时监测.

Wireless vibration monitoring system for bridges based on PQCR-PSL

Based on structure of piezoelectric quartz crystal resonator (PQCR) in series with a planar spiral inductor(PSL),the system combines with field programmable gate array (FPGA),wireless sensor networks (WSNs) and C#,apply digital quartz crystal inductive sensor,which has simple structure and use frequency as output,to bridge vibration measurement.And use this as sensor probe to build up a set of bridge vibration wireless monitoring system.The system is mainly composed of sensor probe,FPGA system,ZigBee network,C # upper computer and has the characteristics of simple structure,good stability and digital output.It achieves non-contact,wireless,real-time monitoring on low-frequency vibration signal.