Use of various Sensors in your Smartphone
Smartphones are the essential part of our Life. Most of our day-to-day life works are dependent on Smartphone in a way. To make Smartphone of such a great use, Smartphone Manufacturers also include various Sensors in the Smartphones. These sensors are of great use for various reasons. So in today’s post, we will see all the Sensors included in Smartphones, what work they do and which sensors does your Smartphone have.
Sensors Included in a Smartphone.
Till date, there are various Sensors that comes with our smartphones and we make use of them without even knowing it. Some of the most common Sensors are…
1]Ambient Light Sensor: An ambient light sensor is a component in smartphones, notebooks, other mobile devices. It is a photodetector that is used to sense the amount of ambient light present, and appropriately dim the device’s screen brightness to match it. This avoids having the screen be too bright when the user’s pupils are adapted for vision in a dark room, or too dim when the device is used outdoors in the daytime. Dimming the screen on a mobile device also prolongs the lifetime of the battery.
In our Smartphones, we call it Adaptive Brightness. This feature makes use of Ambient Light Sensor to manage the Screen Brightness automatically. Ambient Light Sensor is not always accurate so Android has introduced enhanced Adaptive Brightness Feature in Android Pie that makes use of AI for better functioning. You can read more about this here
2] Gyroscope Sensor and Accelerometer: Accelerometers in smartphones are used to detect the orientation of the phone. The gyroscope, or gyro for short, adds an additional dimension to the information supplied by the accelerometer by tracking rotation or twist. An accelerometer measures linear acceleration of movement, while a gyro, on the other hand, measures the angular rotational velocity. Both sensors measure the rate of change; they just measure the rate of change for different things.
In practice, that means that an accelerometer will measure the directional movement of a device but will not be able to resolve its lateral orientation or tilt during that movement accurately unless a gyro is there to fill in that info. With an accelerometer, you can either get a really “noisy” info output that is responsive, or you can get a “clean” output that’s sluggish. But when you combine the 3-axis accelerometer with a 3-axis gyro, you get an output that is both clean and responsive at the same time.”
Accelerometers are also used to provide ‘steps’ information for a vendors ‘health’ application.
4] Digital Compass Sensor: Have you ever used the Compass App in your Smartphone that indicates the direction like South, North, East, and West? Well, this compass App makes use of Digital Compass Sensor.
The Digital Compass Sensor that’s usually based on a sensor called the magnetometer and 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 your physical orientation.
5] Proximity Sensor: In Smartphone you receive a call and take the Smartphone near to your Ear and the Screen goes off and turns on as soon as you take the Smartphone away from your Ear. Cool? Yeah, but how that happens? Well, all thanks to the Proximity Sensor.
It Detects when an object is near to the phone. Most commonly used to sense when a phone is held up to the user’s ear to turn off the display. This saves both battery life and prevents accidental screen touches. Turning off the screen while it’s screen is facing something close is also helpful to be safe from Accidental Touches.
If it was not for Proximity Sensor you might ‘End the Call’ or ‘Put it on Loudspeaker’ when it touches your ear. “ACCIDENTAL TOUCHES”.
6] Fingerprint Scanner: This is the one that does not need much of the explanation cause it does what is sound like. Many of the Smartphones are now Equipped with this one.
7] A sensor for Face Unlock(Facial Recognition): This one is quite complicated. Most of the low-end Smartphones use the front facing camera for Face Unlock which has its demerits. But in high-end devices like Apple, Samsung, and Pocophone, Oneplus and etc. use IR(Infrared Sensor) to do this trick. The process is quite complicated soo i will cover it up in a separate Article.
8]Thermometer Sensor: A Thermometer Sensor is used to monitor the temperature of your device and shut it down if it’s about to overheat. It particularly measures the CPU temperature and Battery Temperature.
9] Barometer Sensor: A Barometer Sensor is used to measure atmospheric pressure in the surrounding. It may be helpful for weather forecast and measuring surface altitude.
There are some other rarely used Sensors like Heart Rate Sensor, SpO Sensor, Color Spectrum Sensor, Iris Scanner, Hall Sensor etc.
That were all the Major Smartphone Sensors that make a ‘Phone’ the ‘Smartphone’.
How to find the Sensors Available in your Smartphone.
Well, it is not a great deal unless you don’t have an Internet Connection or you have Exhausted your daily Data Quota on Jio :D. All you have to do is Download CPU Z App from play store and it will list all the available sensors in your Smartphone.
Now I might be missing some of them in this article, so I request you to help me by Commenting them down below. And if you know any other cool apps to explore the inside of Smartphone please comment them Down.
Thanks for Visiting