RELIABILITY ANALYSIS OF TEMPERATURE SENSOR SYSTEM

In this paper, reliability analysis of thermocouple, RTD, and thermistor temperature sensing technologies and their corresponding systems used for controlling the main systems in many critical applications are carried out. Failure mode and effect analysis (FMEA) and the failure rate prediction of each component in the three temperature sensor systems are carried out and presented. All the major and critical failure modes and their respective corrective actions for preventing the same are established. This will help the designer to eliminate the occurrence of such failure modes by redesigning/design improvement. The concept of Pareto analysis is applied to the three temperature sensor systems for the failure rate analysis and prioritization for improvement of high failure rate components.

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