
Design & Construction of A Thermometer By Using Matlab Coding
Parallel Interfacing with Matlab
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Temperature measurement is an integral part of many process industries. Thus it is essential to have a competent system for this measurement purpose. We deals with the design and implementation of a Personal Computer (PC) based temperature measurement system. The main sensor used in this case is a commercially available thermistor and custom-made signal conditioning hardware and a data acquisition system. The distinct advantage of this system is its cost effectiveness when compared with conventional temperature measurement systems frequently employed various processes. The thermistor output is...
Temperature measurement is an integral part of many process industries. Thus it is essential to have a competent system for this measurement purpose. We deals with the design and implementation of a Personal Computer (PC) based temperature measurement system. The main sensor used in this case is a commercially available thermistor and custom-made signal conditioning hardware and a data acquisition system. The distinct advantage of this system is its cost effectiveness when compared with conventional temperature measurement systems frequently employed various processes. The thermistor output is a single ended voltage, which is dependent on the transfer function of the thermistor itself. According to this transfer function, the thermistor provides a certain voltage for a certain temperature. The output of the thermistor is then amplified using a non-inverting instrumentation amplifier. Then the instrumentation amplifier output signal is fed to an Analog-to-digital converter (ADC) that will provide digital output. Then output of ADC is connected to a multiplexer which converts digital data from parallel to serial. Finally, this digital information is sent to a Personal Computer (PC)