Estudo, projeto e implementação de um medidor de vazão eletromagnético aplicado a instrumentação e automação de processos

Abstract

In industrial processes, the flow is between variables and measures, has several types of operating principles for a measurement. The electromagnetic flowmeters correspond to a large portion of the flowmeters used, present the reliability and accuracy of the measurement, have no obstruction in the passage of the fluid, the ability to perform a measurement of liquids with suspended solids, the pressure drop negligible, large range of operation. The work consists in the study, construction and implementation of a prototype electromagnetic flow meter, focused on instrumentation and process automation in general. The method of construction of a prototype is presented, presenting means of confection, acquisition of signal and development of electronic circuits, in addition, a structure of tests is presented allowing to the prototype to receive two different values of flow and tests are also realized, finding some problems and proposing solutions. For the acquisition of the signal, generation of results and graphical presentation, MATLAB software was used. At the end of the work the parameterization of the equipment is developed using as reference in the measurements a turbine type flowmeter model YF-S201 and thus carrying out tests of comparison between the two equipments, the developed prototype and the reference equipment. Statistical analyzes of the results are also presented for validation of the prototype precision.