How many different sensor in smart phone?

There are many different sensors in your smart phone.A smart phone function is based on different sensors.
Mobile phone sensors


1)Accelerometers:
  This sensor present in all smart phone.Accelerometers(gravity sensor)are device that can measure acceleration(the rate of change in velocity),but in smart phone they are able to detect changes in orientation and tell the screen to rotate.It indicates in mobile settings as Portrait or auto rotate mode.

2)Proximity sensor:

        It presence nearer to the primary camera in your phone.It is a infra red light.It is turn off screen when you pick the call and you dial the call.Due to this save the charge in your phone.

3)Light sensor:

         In smart phone the light sensor is to adjust display's brightness automatically.It increase the display's brightness automatically when sunlight is high or in outdoor.It decreases the display's brightness automatically when mobile in indoor.It presence in all smart phones.

4)Gyroscope sensor:
         
          It is an advance of accelerometer.The gyroscope is a sensor that can provide orientation information as well,but with greater precision.And it also can tell how much phone has been rotated and in which direction.It also used in google's sky map.

5)Barometer:

         Barometer is a sensor that can measure atmospheric pressure.Data is measured by it is used to how high the device above sea level,Which in turn results improved GPS accuracy.

6)Magnetometer: 
  
          The digital compass that's usually based on a sensor called as magnetometer provides mobile phones with a simple orientation in relation to the earth's magnetic field.As a result,your phone always knows which way is north so it can auto rotate your digital maps depending on physical orientation

7)Thermometer:

          Thermometer is sensor that can measure temperature in inside of your mobile phone.
8)Pedometer:

          Pedometer is a sensor which provide health data of mobile user.

As well as you know some sensors like,
       
     1)Finger print sensor
     2)Heart rate sensor  
     3)Camera sensor
     4)Mike sensor             

       

           

















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