Sensors in Android smartphones

01 Oct 2017


Sensors in Android smartphones

Sensors in Android smartphones allow detection, analysis, and recording of physical phenomenon into a more convenient signal.
Sensors convert physical measurements such as displacement, velocity, acceleration, force, pressure, or flow into electrical signals.
Electrical outputs are very convenient because there are well known methods for filtering and acquiring electrical signals for real-time or subsequent analysis. Sensor size is important, and small sensors are required for many reasons including easier use, a higher sensor density, and lower material cost.

Accelerometer sensors also have applications measuring hand motion by directly converting hand movement to the input of a control system. Common examples of computer control using conventional hand movement sensors are a keyboard, keypad, joystick, and the screen movement. In smartphones, it is used in touch screen applications and 3D android games.
Keyboards passes a signal based on the location of a finger pressing a button and touchscreen use potentiometers to sense two-dimensional or three-dimensional tilt of a lever controlled by the hand.

When combining the accelerometers in the earth’s gravitational field, there is always the acceleration due to gravity of earth magnetic field.  Thus the signal from an accelerometer sensor can be separated into two signals, the acceleration from gravity, and external acceleration. The acceleration from gravity allows measurement of the tilt of the sensor by identifying the direction.
By excluding out the external acceleration, the orientation of a three-axis sensor can be calculated from the accelerations on the three accelerometer axes.



Recent Posts

Important Facts about battery in Android

Important Facts about external SD card in Android

Resolving Errors in Android Mobile Phones

Dual Cameras in Mobile Phones

Sony Xperia XZ1 Camera Review

Google Pixel 2 Camera Review

Samsung Galaxy Note 8 Camera Review

iPhone X Camera Features

Pros and Cons of Android

Augmented Reality in Smartphone Applications

Multi core processors in Smartphones

Important Features of iPhone 8 Plus

Important features of Corning Gorilla Glass

Important difference between various country specific versions of mobile phones

Important Facts about memory in Android

Important Features of Asus Zenfone 3

Snapchat Spectacles can record real life activities

Android Application can recognize previous installations on a mobile device

Applications usage tracking in Android

Important Features of Google Assistant

Important facts about Quick Charging

Difference between Clearing Application from Recent Apps list and Force Stop in Android

Important Features of iPhone 7

Data storage location of applications in Android

Importance of data system folder in Android Phone

Comparison of LG V20 and LG V10 Smartphones

Important features of Huawei Nova Plus

Resolving Gallery application issue due to less memory space in Android

Important Features of Sony Xperia XZ

Common causes for battery drainage in Android Phones

SonyMobilePhones.com © Copyright 2017, All Rights Reserved.     Sonymobilephones.com is an independent website and has not been authorized, sponsored, or otherwise approved by Sony.