Sensors in smartphones ( MEMS technology)
Download as PPTX, PDF•3 likes•2,558 views
The document provides an overview of various sensors used in smartphones, including accelerometers, gyroscopes, and proximity sensors, along with their functionalities and common applications. It highlights how these sensors measure motion, orientation, and environmental conditions, contributing to the device's capabilities and appeal to consumers. Additionally, it mentions other sensors like ambient light sensors and fingerprint sensors, which enhance user experience and security.
Sensors in smartphones ( MEMS technology)
- 1. Sensors in smartphone Presented by; Presented to; Kamal Jeet Mr k srinavasa rao B.tech (ECE) 3rd Dept. of ECE MUR14O1264
- 2. Contents Overview Different sensors in smartphone Accelerometer Gyroscope Proximity sensor Common uses of other sensors
- 3. Overview It measure motion, orientation, and various environmental conditions. Attracts the buyer Smart work by sensors Manufacturers became competitors
- 4. Different sensors in smartphone
- 5. Accelerometer Capacitive type hardware sensor Measures the acceleration force in m/s2 that is applied to a device on all three physical axes Common uses like motion detection (shake, tilt, etc.)
- 7. Gyroscope Measures angular rate using Coriolis effect Similar to accelerometer Measures a device's rate of rotation in rad/s around each of the three physical axes (x, y, and z) Common uses like rotation detection (spin, turn, etc.)
- 9. IR based proximity sensor Working principle
- 10. Obstacle Sensing Circuit or IR Sensor Circuit common use phone position during a call
- 11. Common uses of other sensors Ambient light sensors used for Controlling screen brightness. The digital compass that's usually based on a sensor called magnetometer 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. Fingerprint sensor changed the smartphone security
- 12. References https://www.techulator.com/resources/9421-Overview-sensors-used- smartphones-tablets.aspx https://developer.android.com/guide/topics/sensors/sensors_overview.html https://www.google.co.in/search?q=different+sensors+in+smartphones&rlz=1C1 CHZL_enIN732IN732&espv=2&source=lnms&tbm=isch&sa=X&ved=0ahUKEwi97 KO48a3TAhUFTrwKHf9RAe4Q_AUIBigB&biw=1366&bih=613 http://www.instrumentationtoday.com/mems-accelerometer/2011/08/ http://www.electronicshub.org/ir-sensor/ http://www.displaymate.com/AutoBrightness_Controls_2.htm