振弦式传感器测频系统的设计

根据振弦式传感器工作原理而设计的测频系统主要由手持式测频仪和PC计算机组成。测频仪采用直读式测频法测量振弦式传感器的输出频率,并将测量值和传感器特性参数代入固化在其内部的计算公式进行计算,从而实现传感器物理量的现场显示。同时,还可以通过PC计算机的串口将测量数据传给计算机,由计算机对数据进行处理、显示。该系统可大大减轻测量人员和工程技术人员的劳动强度,缩短测量和计算时间,提高测量及计算准确度。

Design of a frequency measuring system for vibrating-wire sensor

A frequency measuring system which is designed in accordance with the working principle of a vibrating-wire sensor is mainly composed with a portable frequency measuring device and a PC.The output frequency of a vibrating-wire sensor can be measured directly by the device,then the measurements and the parameters of sensors were calculated together with formulas programmed in the device,thus physical data were acquired in the worksite.At the same time,the measured data can be transmitted to the PC and can be processed and displayed by it.Furthermore,this system not only eases the labor intensity dramatically but also shortens the time of measurementment and compute and improves the precision of the measurement and compute.