sensors and transducers
TRANSCRIPT
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SENSORS & TRANSDUCERS
By: Nikhila Wakle Preeti Bhat Anish Das Mitul Pimpale
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TRANSDUCERS
A device which converts 1 form of energy into another.
In a process industry 4 basic and very important parameters to be measured and controlled are:
1) Flow 2) Temperature 3) Pressure 4) Level
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FLOW MEASUREMENT
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TEMPERATURE MEASUREMENT
•Thermocouple•Thermistor•RTD•Bimetallic Thermostat•Pyrometers
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COMPARISION OF DIFFERENT TYPES OF TEMPERATURE SENSORS
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PRESSURE MEASUREMENT Manometric Method
Elastic Pressure Transducers
1) Bourdon Tube
2) Bellows
3) Diaphragms
4) Capsule
Electric Pressure Transducers
1) Capacitive e.g. D.P. Cell
2) Inductive e.g. LVDT
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PRESSURE GAUGE Generally named as Pressure gauges or Vacuum gauges.
Absolute pressure is zero-referenced against a perfect vacuum, so it is equal to gauge pressure plus atmospheric pressure.Gauge pressure is zero-referenced against ambient air pressure, so it is equal to absolute pressure minus atmospheric pressure.Differential pressure is the difference in pressure between two points
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