This article is based sensors used in smartphones. How does it work in smartphones?
How does Sensor work in smartphones?
The importance of smartphones has increased a lot in modern times. We consider all the features when buying a smartphone. So when buying a smartphone, processor, camera, memory storage as well as sensors must be considered. Because the sensors in the smartphone are also very important. Most of the functions in smartphones are done through sensors. Sensors also help us in many of the things we do on our smartphones in our daily lives. They make it easy to use a smartphone. Let's take a look at the technologies and types of sensors that make smartphones truly 'smart'.
Types of Sensor in Smartphones :
Proximity Sensor :
This is a sensor found in all smartphones. This sensor is usually located around the front camera on a smartphone. The main use of this sensor is to turn off the display if something is closer than a certain distance from the display. The same sensor automatically turns off the phone's display when you get a call near your ear. Settings like pocket mode are also achieved by these sensors. This prevents things like opening a menu or making a call from being touched unknowingly while the phone is in a pocket or bag on a touch screen display.
Ambient Light Sensor :
This sensor has been used in smartphones since about the beginning of the smartphone era in 2004. It is found in all smartphones nowadays. It is used to automatically increase or decrease the light of the screen depending on the ambient light. This allows the user to see the screen properly without getting too much light on the screen. This sensor is also called Lux sensor because it measures the intensity of light. Lux is a unit of measurement of light intensity. This sensor can work between 50 lux and 10,000 lux. The light intensity in your house is usually 50-100 lux while the daylight is up to 10,000 lux. If there is direct sunlight on your screen, you can't see the screen clearly, because its intensity is higher than the operation of the light sensor, which is about 32,000 lux or more.
Accelerometer Sensor :
This sensor is used to understand the movement of the smartphone. When you hold the phone vertically or horizontally, the picture on the screen is also rotated in the same direction by the same sensor. This sensor is used in many games to understand the movement of the phone. Even in applications like Google Maps, these sensors play an important role in showing the direction or speed of your vehicles.
Gyroscope Sensor :
The accelerometer can only sense the forward or backward movement of the smartphone. But if the smartphone is fully rotated, it rotates in all three axes. A gyroscope is used to understand it. The gyroscope plays an important role in gaming, virtual reality video, 360 degree video or photography.
Magnetometer Sensor :
It is used in compasses in smartphones. The magnetometer works in a smartphone, just as the North Pole is shown in our general compass.
GPS, the Global Positioning System, is one of the most widely used devices today. GPS is used to get the latitude and longitude of exactly where we are standing on the surface of the earth. The sensor appears to work in applications with accelerometers, gyroscopes and magnetometers, as well as applications such as Google Maps. GPS is a technology introduced by the US, in addition to Russia's GLONASS or currently India's Navic, some smartphones are also available.
Audio Sensor :
It is used in the microphone of a smartphone. Audio sensors are used to increase or decrease the volume of your voice while you are speaking. Software processing seems to be done in many applications based on audio sensors, as it is important to reach an intact and audible voice to the person in front in the current remote conversations.
Fingerprint Sensor :
As the name suggests, it is used to take fingerprints and unlock smartphones. The fingerprint sensor is important in terms of privacy and security. Although the fingerprint sensor can be seen on the display nowadays, its function is the same as the previous button-like sensor.
Barometer Sensor :
This is a sensor found in very select smartphones. With the help of this
Understands how high we are above sea level. It is used in some applications with GPS sensor. Air sensors can now be seen through these sensors, so the weather forecasting applications in smartphones can also be seen using these sensors. Along with barometers, humidity sensors are also used nowadays to help in understanding the humidity in the air.
Pedometer Sensor :
This sensor chip shows how many steps we have taken using our own algorithm based on the accelerometer and gyroscope. Pedometer sensors are important in today's age of fitness applications. In some places, pedometer sensors are used to measure the area of a piece of land or to determine its exact size.
Thermometer Sensor :
Although this sensor cannot be used by actual users, it is very important for smartphones. It measures the temperature of the smartphone's processor, screen and other technical parts. The thermometer plays an important role in slowing down the processor speed when the temperature of a normal smartphone exceeds 50 degrees Celsius. This can prevent high temperature damage to your smartphone's battery and processor.
Heart Rate Sensor :
This can be seen in some select smartphones nowadays. The heart rate of smartphone users can be measured by an optical sensor on the side of the camera flash. This requires placing your finger on the optical sensor like a fingerprint.
NFC Sensor :
NFC stands for Near Field Communication. Although this sensor works like Bluetooth in a smartphone, its limit is only four centimeters. This is mainly used in applications like 'Tap to Pay'. It does not require pairing like Bluetooth, but you can connect the two devices by simply tapping the devices.
Camera And TOF Sensor :
Your smartphone's camera is also a sensor. This allows you to take good quality photographs, mainly by understanding light. The TOF (Time of Flight Sensor) is now used with the main camera. The TOF sensor is used in portrait mode as an alternative to background blur when taking photos from your phone.
Hall Sensor :
It is used more in tablets than smartphones. When you close the flip cover of your tablet, it closes automatically and when the cover is opened, it turns on automatically. This is mainly controlled by the Hall sensor.
Infrared Sensor :
This is also called I-R blaster. This sensor is used to use your smartphone as a remote for a television or other device. This sensor is centered on the top of the phone and is controlled by software. In most Xiaomi phones you get to see the infrared sensor.
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