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sensors, which play a key role in the conversion of a normal phone into smart one. ppt contains all the information you want to know about sensors used in smartphones.
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The technology is growing at the highest level. These days people want to change their smartphone frequently due to upgradation and invention of technology in the smartphone industry. Upgradation in specification like RAM, internal storage, camera section and processor are specific and user can easily understand these terms. But when we come to sensors, which play a key role in the conversion of a normal phone into smart one. The user gets trouble with the certain terms like, accelerometers sensor, Gyroscope, magnetometers and fingerprint sensor etc.
Accelerometer Sensor It is the well-known sensor in the smartphone. The accelerometer is used to sense the changes in the orientation of smartphone with respect to the viewing angle of the operator. The most important key factor of this sensor is that it senses the change in orientation by 3D (X, Y, Z axis) measurement of the acceleration of the device.
Digital Compass Compass is a very common name, which is used in day to day life. As, we all know, the compass is used to find the accurate direction with respect to the north-south pole of the earth by use of magnetism. For the functionality of Digital Compass in the smartphone, it is usually based on another sensor called as Magnetometer. It provides smartphone a simple orientation in relation to the earth’s magnetic field that further helps the phone to find the direction in the map/navigation apps.
Gyroscope Sensor This is the sensor which is used to maintain and control the position, level or orientation based on the principle of angular momentum. It works with an Accelerometer to detect the rotation of phone and features like tilting of phone to play racing games enhances the overall gaming experience.
Back Illuminated Sensor This is the one sensor which is placed in every camera phone. It is a type of digital image sensor which changes or increases the intensity of light while capturing a photograph. Sony is the first company to implement this technology in 2009.
Ambient Light Sensor This sensor is used optimize the light of the screen when it strikes to normal light with different intensities. The functionality area of the ambient light sensor is to adjust the display’s brightness, which at the end saves the battery power and life too.
GPS sensor A Global Positioning System (GPS) navigation sensor is a sensor that accurately calculates geographical location by receiving information from GPS satellites. Initially, it was used by the United States military, but now widely used in the latest smartphones.
Proximity sensors The proximity sensors in the smartphone works on the nearness of any object to the smartphone. In most of the smartphone, the proximity sensor is at the top nearby the front-facing camera. With the help of proximity sensors smartphones detect the distance of any object near the display of the smartphone and if that object is much close to the display then it shuts off the display to save power and obviate unnecessary touch input.
NFC sensors The Near field communication (NFC) sensor is a set of communication protocols that enable two electronic devices, one of which is usually a portable device such as a smartphone, to establish communication by bringing them within 4 cm (2 inches) of each other.
Fingerprint Sensor Fingerprint Sensors is an automated method of verifying a match between two human fingerprints. Fingerprints are one of many forms of biometrics used to identify individuals and verify their identity. This technology is nowadays being used very frequently by Smartphone makers to provide better privacy and security system in the handset.
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