• CONSTRUCTION OF CRITICAL TEMPERATURE ALARM SYSTEM


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    • ABSRACT - [ Total Page(s): 1 ]The term “critical point” is sometimes used to denote specifically the vapour-liquid critical point of a material. The vapour-liquid   point denotes the condition above which distinct liquid and gas phases so not exist.The project, the construction of critical temperature measuring instrument is aimed at measuring the critical point substances thereby obtaining its liquid-vapour critical temperature and pressure for a selected substance.The chapter one of this project gave a brief introduction on sensors and also considering types of temperature measurement sensors. Also discusse ... Continue Reading

         

      CHAPTER ONE - [ Total Page(s): 2 ]TYPES OF TEMPERATURE MEASUREMENT SENSORS 1) THERMOCUPLE TEMPERATURE MEASUREMENT SENSORS:Thermocouple consists essential of two strings or wire made of different metals and joined at one end. Changes in the temperature at the juncture induce a change in electromotive force (emf) between the other ends. As temperature goes up, this output emf of the thermocouple rises, though not necessarily linear.2) RESISTANCE TEMPARATURE DEVICES (RTD)Resistive temperature devices capitalize on the fact that the electrical resistance of a material changes as its temperature changes. Two key typ ... Continue Reading