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Instrumentation : How It Works

Differential Pressure Switch Working Principle

S Bharadwaj Reddy
A Differential Pressure Switch, just like a regular pressure switch, is a simple electro-mechanical device that operates on the basic principles of levers and opposite forces. Mainly, they are used for

Float Level Switch Working Principle

S Bharadwaj Reddy
Float Operated Level Switches Principle: All float operated liquid level controls operate on the basic buoyancy principle which states “the buoyancy force action on an object is equal to the

Thermistor Working Principle

S Bharadwaj Reddy
Thermistors Thermistors are temperature sensitive semiconductors that exhibit a large change in resistance over a relatively small range of temperature. There are two main types of thermistors, positive temperature coefficient

Resistance Temperature Detectors Working Principle

S Bharadwaj Reddy
Resistance Temperature Detectors (RTD) Working Principle Thermo-resistive Temperature Measuring Devices A change in temperature causes the electrical resistance of a material to change. The resistance change is measured to infer

Thermocouple Working Principle

S Bharadwaj Reddy
THERMOCOUPLES A thermocouple is made up of two dissimilar metals, joined together at one end, that produce a voltage (expressed in millivolts) with a change in temperature. The junction of

Mechanical Temperature Measuring Sensors

S Bharadwaj Reddy
Temperature can be measured via a diverse array of sensors. All of them infer temperature by sensing some change in a physical characteristic. There are four basic types of temperature

Tilt Level Switch Working Principle

S Bharadwaj Reddy
Tilt Switches Monitor’s line of tilt bin level switches are economical, trouble-free point level controls available for detection of dry bulk materials. The units can be used as high level indicators

Temperature Switch Working Principle

S Bharadwaj Reddy
Temperature is a measure of the average heat or thermal energy of the particles in a substance. Since it is an average measurement, it does not depend on the number

InLine Flow Switch Working Principle Animation

S Bharadwaj Reddy
Flow switches are comprised of two main assemblies: the housing and the shuttle assembly. As liquid flow enters the flow switch, it passes through an orifice between the inlet and outlet ports. When

Float Level Switch Working Principle Animation

S Bharadwaj Reddy
All float-operated liquid level switches operate on the buoyancy principle: “the buoyant force acting on an object is equal to the mass of liquid displaced by the object”. As a

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