What is sensor , tpyes of sensor

Hello friends ...

I hope you all are Safe . Today we are discuss about electrical sensors. so let's see 

You know human have so many sensor in Human body ..like that 

1) eyes for sense the vision 

2) ears for sense hearing 

3)nose for sense smell 

4)skin for sense touch 

5)tongue for test..

so friends above the example we define the sensor definition 

what is the sensor 

A sensor is a equipment (device) that detect the  many types input from physical environments like

Temperature, light, volume, material (objects), speed, moisture, motion, pressure, flow etc..etc..

What is Electrical sensors..?

A sensor is a device that detect  the physical changes environment Temperature, light, volume, material (objects), speed, moisture, motion, pressure, flow etc..etc.. and convert in to Electrical signals or feedback 

Types of sensor 

1)Digital Sensors (PNP AND NPN )

 digital sensor is an electronic or electrochemical sensor, where data is digitally converted and transmitted and given feedback 0v or 24vdc

LIST OF DIGITAL SENSOR 

•  Proximity sensor

         1) Inductive Proximity for sense the metal object 

         2) Capacitive Proximity  for sense metallic or non-metallic object 

         3) photoelectrical proximity 

         4) Ultrasonic proximity

• Pressure switch - measure the pressure of liquids ,gas or any Air
  
• flow switch - measure the flow of liquid
• photo electric sensor   ( diffuse types , retro reflector , transmitter - receiver )
  
  
• Water Quality measure sensor (ph meter )
  
  
  
• IR sensor 
• level sensor
• Motion Sensor 
• smock detector sensor

2) ANALOG SENSOR 

Analog sensors are those which produce an analog signal based on what they sense and give the feedback in voltage, current or resistance 

LIST OF ANALOG SENSOR 

•  Resistance temperature detectors

• Thermocouple

  

• Distance sensor

  

• Anemometer wind speed sensor

  

• Flow sensor

• 

• Lvdt (Linear Variable Differential Transformer)

• Encoder 

  

• Angle sensor