一、引言为了有效降低供能单位和用户之间可能存在的计量偏差,除了选择合理的现场流量计外,同时,还要配备性能良好符合实际使用状况的流量积算仪,组成完善的流量计量系统,满足用户的要求。流量积算仪的功能是采集来自现场的压力、温度、流量等信号,将现场的输入信号转化为数字信号,通过微处理器进行处理(如开方运算、小信号切除 I. INTRODUCTION In order to effectively reduce the measurement deviation that may exist between the energy supply unit and the user, in addition to selecting a reasonable on-site flow meter, at the same time, it is also equipped with a flow totalizer that is in good condition and in line with the actual usage, and has a complete flow meter System to meet the user’s requirements. Flow totalizer function is collected from the scene pressure, temperature, flow and other signals, the scene of the input signal into digital signals, through the microprocessor for processing (such as the square root operation, small signal removal