基于TMR的流量控制器装置的设计

Design of Flow Control Device Based on TMR

为了减少水资源浪费,针对机械式流量计量中的计量精度不高、抄收和管理手段落后的问题,设计了一种以TMR(隧道磁电阻传感器)为核心的计量方式,可以精确计量到1/8圈的用水量(即12 m L左右的的水量),并通过M_bus有线通信方式,将计量的数据实时传送到主站系统;相关工作人员通过查看抄读回的用户使用数据信息,对用户的使用情况进行检测和控制。实验表明,此控制器装置可以达到精确计量的目的,为后续的漏损分析提供了重要的依据。

In order to reduce the waste of water resources,according to problems oflow measuring accuracy of mechanical flow measurement and backward management,ameasurement method with TMR( tunnel magnetoresistance sensor) as the coreis designed. It can accurately measure the amount of water to 1 /8 circle( about 12 m L water). The measurement data are transmitted in real timethrough the M-buswired communication mode to the master system. Relevant staff detect and control the usage of the userby reviewing the read data. Experiments show that,this controller cannot only achieveaccurate measurement but also provide an important basis for thesubsequent analysis of the leakage.