水表远传流量计的研制

DEVELOPMENT OF WATER METER-REMOTE TRANSFER-FLOW METER

水表远传流量计是在旋翼湿式水表的基础上,增加了光电检测元件,使水表在对流过水表中的流量进行计量的同时,输出相应的脉冲信号。而后,由单片机组成的数据采集与处理系统对脉冲信号进行处理,转换成瞬时流量和累积量,由数码管进行显示。同时将脉冲信号转换成0～10mA.DC信号进行远传。该流量计具有成本低、结构简单、使用寿命长、对环境要求不高、能满足实际生产需要等特点。本文对该流量计的结构、工作原理进行了较全面的分析,并给出了应用情况。

The water meter-remote transfer-flow meter,which is improved on the base of rotary wing-wet water meter by added a photoelectric-measuring device cleverly is introduced in this paper. This flow meter is composed of a rotary wing-wet water meter and a data sampling and processing system. It can not only display but also output the electric signal. It has the function of displying instantaneous flow and accumulative total,alarming,setting up the parameter et al. It is low cost,simply but reliable and convenient. In this paper,the construction and work principle are discussed in detail.