摘要
气体检测标准装置主要有质量法和标准表法。简述了检测装置的组成和工作原理,为了改善原有气体在线检测装置检测过程中的重复性和准确性,设计了一套基于气体在线检测标准表法的气体仪表检测装置,检测系统集成了具有高速脉冲计数器接口的PLC,可实时采集温度、压力、流量等检测参数信号,实现在线检测和检测报表生成的全自动控制。对系统的不确定度进行了初步分析,并估算出系统不确定度,同时给出了保证检测结果准确性和可靠性的有效措施。
There are two methods of mass and standard table for standard gas detection device.The configuration and working principle are briefly introduced.To improve poor repeatability and accuracy for original gas on-line detector during operation,one gas detector based on standard table for on-line gas is designed.The detecting system integrates with high-speed pulse counter interfaces of PLC,and can acquire real-time processing parameters including temperature,pressure and flow rate signals,and realizes fully automatic control of on-line detecting and generation of detection reports.The system uncertainty is primarily evaluated and estimated,and the effective measures to ensure accuracy and reliability of detection results are presented.
出处
《石油化工自动化》
CAS
2014年第1期47-50,共4页
Automation in Petro-chemical Industry
关键词
在线检测
可编程控制器
标准装置
变频器
on-line detection
programmable logic controller
standard device
frequency transformer
