Pressure Measurement

What is Thermocouple Gauge ?

Thermocouple Gauge Thermocouple gauge is a device used to measure low vacuum.Working of a Thermocouple GaugeIn Thermocouple Gauge a filament is heated by passing constant current through it.When gas molecule interact with filament heat is carried away.Therefor the temperature is directly depended on the pressure in the chamber.The higher the pressure the more molecule interact with …

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What is Pirani Gauge ? Advantages,Disadvantages and Application of Pirani Gauge

Pirani GaugePirani gauge is a device used to measure low vacuum in a pressure range from 0.5 Torr to 10−4 Torr. Working Principle and Construction of Pirani gauge  Pirani gauge consist of two tungsten filaments,a power source and a volt meter or ammeter.One of the filaments is placed to gauge tube and is exposed to the environment where the pressure …

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Basics of Pressure Transmitter

What is a Pressure Transmitter ? A pressure transmitter is a transducer that converts pressure into an electrical signal. It outputs both analog and digital signals corresponding to the pressure. A pressure transmitter measure three phenomena : Differential Pressure,Gauge Pressure,Absolute Pressure. The most common and useful industrial pressure measuring instrument is the differential pressure transmitter. This instrument …

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Pressure Measurement – Bourdon Gauge -Working Principle Advantages and Disadvantaged

Working Principle Of Bourdon Gauge  If a tube having oval cross section is subjected to pressure its cross section tends to change from oval to circular. Construction of a Bordon Gauge  Bourdon tube gauges consist of a circular tube. One end of the tube is fixed while the other end is free to undergo elastic deformation under …

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Pressure Measurement – Manometers Working Principle – Vaious types of Manometers

Manometers Manometers are one of the oldest type of pressure measurement. Manometers can be used to measure gauge pressure,differential pressure and absolute pressure. Various types of Manometers 1.U tube Manometer 2.Well type or reservoir manometer 3.Inclined manometer 4.Float type manometer U tube Manometer. U tube is made of glass.The tube is filled with a fluid known …

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