Evaluation Of Dynamic Characteristics On PRT And Thermocouple Sensors In An Automated Temperature Calibration System

Ilham Hadi , Syahril (2013) Evaluation Of Dynamic Characteristics On PRT And Thermocouple Sensors In An Automated Temperature Calibration System. Project Report. UTeM, Melaka. (Submitted)

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Abstract

It is important to identify the static and dynamic characteristic of temperature transducer in order to get a precise measurement in temperature calibration. Most of the previous studies in temperature calibration system only focus on static characteristic of the transducer. While the diameter of temperature probe does not affect the steady state temperature, it is important factor when considering the dynamic characteristic of the transducer. Different sizes probe diameter may alter the time response of the systems due to different loading error. When dealing with dynamic analysis of temperature transducer, it is necessary to design a measurement system that having as small as possible time constant to reduce the error cause by the dynamic characteristic of the system. This dynamic characteristic of temperature transducer is studied using an automated temperature calibration system. An automated calibration system is different from manual temperature calibration by utilizing computer interface in calibration process. LabVIEW is used to develop the computer interface that control the calibration parameters precisely and display the result. From the calibration result obtain, the uncertainty analysis of the measured data is carried out including the population of mean and variant of the data.

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