Implementation of low-cost MEMS based temperature measurement and control system using Lab VIEW and microcontroller

Abstract

In every process industry, measuring, monitoring and controlling of process parameters (like... pressure, temperature, level, flow, humidity etc.,) plays a vital role in obtaining the desired end product. Among all the parameters temperature measurement, monitoring and control in precise is difficult as it is a slow process. Selection of the sensor for the temperature measurement is crucial. The aim of this paper is to implement low-cost MEMS (MicroElectroMechanical Systems) based real time temperature measuring, monitoring and control system which uses a monolithic temperature sensor that provides a pulse width modulated digital output signal corresponding to its input temperature. Two different platforms are chosen to implement the MEMS based temperature control system. First one is using real time controlling software NI LabVIEW and another is using PIC microcontroller. As the implemented system uses advance technologies i.e. MEMS and LabVIEW, results in compactness, low cost, high level of accuracy and wide range of temperature measurement.