Sensors and Their Functions: How to know Sensors Functioning on your Phone

Sensors and their functions

Sensor is one of the add-on that further enhance our mobile device to be able to do some certain task that requires them. It is very important and it can not be neglect when it comes to getting the best out of our smart devices. Sensor has been in existence on mobile phones for a very long time, the most common and oldest ones are Ambient Light sensor which featured on Nokia E65 that was launched in 2007, and Accelerometer which featured on Nokia's first touchscreen smartphone, the 5800 Express Music, launched in 2008.

Each sensor has different function, the most popular on Android devices are Accelerometer and Proximity, which most games and applications required.

Functions of each sensor are as follows:

1.) Accelerometer: It is used to detect the orientation of a device based on linear acceleration. The most common type on mobile phones is 3-axis accelerometer, which covers up to 0-270 degree angle.

2.) Proximity sensor: Is a sensor that can detect nearby objects without physical contact. The sensor is normally placed at the top of phone display. When making calls, placing phone near the ear triggers the proximity and phone display auto turn off.

3.) Ambient Light: It is used to detect the amount of light and brightness. The sensor regulate phone screen brightness according to light perceive in that environment. For instance, the screen automatically dim when indoor and bright when outdoor.

4.) Gyroscope: Gyroscope works much like accelerometer, but it can measures angular rotational velocity while accelerometer can only measure linear acceleration of movement.

5.) G-sensor: It determines the amount of movement made when accelerometer is in use. It's like an assistant that helps give an accurate measurement of distance whether to the left or right when a device is tilt.

6.) Magnetic Compass: It measures the orientation of a device in relation to earth magnetic field. Maps uses compass to determine the exact direction of where you are facing with ability to detect true north pole in judging all other directions.

7.) Barometer: While barometer in real life is used to measure atmospheric pressure, the barometer sensor present on mobile phones doesn't works that way. Barometer sensor on mobile are used in delivering altitude data for GPS chip for faster lock on current position of the holder.

Heart rate sensor: It is used to measure the rate of heartbeat and pulse when idle and during exercise. Only few smartphones supports this sensor. Most high-end Samsung comes equipped with one i.e Galaxy Note8 and Galaxy S8.

How to check the sensor that comes with your Android or iOS smartphone

For Android Users:

Android users can check sensor that comes with their phone by installing CPU-Z. The app can determine sensors present on your smartphone and can show their output readings data. After installation, launch CPU-Z from the app drawer and navigate to "Sensors" tab. Learn more about CPU-Z.

For iOS Users:

iOS or iPhone/iPad users can check and monitor the sensor functioning on their phone by installing Sensor Kinects. This app let iOS users monitor their phone sensor output readings and data in real-time.

Download Sensor Kinects from iTunes.

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