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Monday, September 13, 2010

Measurement System: Instrumentation

A measurement System contains 3 elements in it:

1. Sensor: A sensor is a device which is used to convert a physical energy or variable in to a suitable form of energy most commonly electrical energy such as current or voltage with the help of a transducer. A transducer is a device which converts physical energy in to any other form of energy. A sensor which responds to the quantity being measured by giving as its output a signal which is related to the quantity.

2. Signal Conditioning Unit: Which takes the signal from the sensing unit and manipulates it in to a condition which is suitable for either display or in case of a control system, for use to exercise control. Also it is used to convert the signal format in to other format for the easy transmission or processing.

3. Display System: A display system is used to output the data's from the measurement system to the outside world.

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