what do you know about sensors?

sensors

Definitions:

The devices that inform the control system about what is actually occurring are called sensors (also known as transducers). For example, we might measure fluid flow in a pipe with a flowmeter.

What is the difference between transducers and sensors?

-Sensors: convert a physical parameters into electrical signals.

-Transducers: convert an energy form into another energy form.

Types of sensors:

•       Flow sensors:

i) Pressure based flow sensor.

ii) Magnetic flow meters.

iii) Turbine flow sensor.

•       Position sensors:

i) Analogue:

a) Potentiometers.

b) Linear variable differential transformer.

ii) Digital:

a) Optical rotary encoders.

3.  Liquid sensors:

i) Discreet.

ii) Continues

4. Proximity sensors:

i) Limit switches.

ii) Optical proximity.

iii) Hall_Effectproximity.

4.  Pressure sensors:

i) Bourdon Tubes.

ii) Bellows.

iii) Semiconductor pressure sensor.

5.  Temperature sensors:

i) Bimetallic temperature sensor.

ii) Thermistors.

iii) Integrated circuit temperature sensors.

    iv) Resistance temperature detectors