文献类型：专利

英文题名：Gas flow rate calibration system device, has flow rate control device provided with PLC and transducer, compensation device provided with temperature sensor and pressure sensor, and test table fixed with compensation device

作者：HU K;LI Y;LAI J

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN207649729-U

申请日：2017-07-19

公开日：2018-07-24

语种：英文

收录：DERWENT

摘要：NOVELTY - The utility model claims an automatic calibration system for gas flow device, comprising a standard system, an experiment meter, flow measuring and controlling computer, an adjusting valve and an air outlet pipe, wherein the standard meter connected with the experiment table. middle of the experiment table of the standard meter is compensation device, gas firstly through standard system gas generating device, and then standard meter detecting gas flow, stable flow controlling by PLC and transducer, finish closed loop measuring and controlling the gas flow, the temperature sensor and the pressure sensor is provided with an adjusting valve. a temperature sensor, a pressure sensor, a standard table and experimental table is feedback data to the PLC, the flow measuring and controlling computer through RS-485 communication with the PLC, finish the gas flow measuring and controlling, and the gas discharged from the outlet pipe. The advantages are as follows: it realizes line actual flow calibration of the gas flow, can automatically finish the data analyzing and processing, the detection process automation and efficiency, reduce the working intensity of the operator and improve the detecting effect.