随着电子技术、计算机技术、通信技术的迅速发展，工业测控领域采用先进的技术对现场的工业生产参数进行检测，监测是实现工业自动化的重要标志。据不完全统计，在工业生产中被监测最多的参数应该是压力、流量、温度三大参数-With the rapid development of electronic technology, computer technology, communication technology, the field of industrial measurement and control the use of advanced technology to the field of industrial production parameters for testing, monitoring is an important indicator of industrial automation. According to incomplete statistics, most parameters are monitored in industrial production should be pressure, flow, temperature of the three parameters