The Research And Development Of Gas Flowmeter Detection System

The energy measurement is very significant for managing energy scientifically, achievingaccurate acquisition of energy consumption and improving economic efficiency. Flowmeter is animportant part of energy devices, It plays an important role in the national economy to saveenergy, improve product quality, the economic efficiency and the management level. Gasmeasurement and detection is a key link in the process of gas production, transportation andsales. Due to the rising price of natural gas, flowmeter is used in trade settlement and theuncertainty of it is being paid more and more attention. The standard device, which can deployfast and conveniently under a variety of complex, poor working environment and then completedetection task of the flowmeter irregularly with the fastest speed,is in urgent need in Gas market.On the basis of the brief description of flow meter gas data collection, detection andtransmission principle of process, The paper contrasts between standard flow meter and detectedflowmeter, calculates the error of them, analyzes and confirms the performance of the detectedflowmeter.This idea of designing is mainly reflected in the use of the embedded theory, by loading theLinux system it is developed a set of high precision gas flowmeter verification system based onembedded technology and wireless network management. The system mainly consists of nineparts, such as the fluid source, standard flow meter, detected flowmeter etc, each part is modular,It can be combined according to requirements to meet different needs, greatly improving thecharacter of product flexibility and organization. At the same time, The system adopts industrialtouch screen to achieve human-computer interaction interface, devices in the workshop share alarge pressure device through the wireless transmission control; connect each device and serverthrough the Wi-Fi and Ethernet, so as to realize remote Internet network management. Thesystem can improve the gas flowmeter system standard detection precision, which is based onroots flowmeter standard device by high analog to digital conversion. The testing equipment canrealize single standard flowmeter with single detected flowmeter or multi standard flowmeterwith the one; multi standard table can be used according to the flow section;it also can make thesame flow range of standard gas meter used in parallel In order to detect a greater flow.The working principle of the high precision gas flow meter test system based on embeddedtechnology and wireless network management regards gas flowmeter as a standard device,thefluid continuously through standard flowmeter and detected flowmeter in the same time interval,comparise the value of the output flow In order to determine the measured performance testflowmeter. the whole process has realized calibration of detected flowmeter, and indicates Site instruction The cumulative flow, Instantaneous flow, single flow of the detection point. It alsooutputs pulse signal,4-20mA or1-5V analog signal, meanwhile supports232,485, wirelesscommunication.