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- 05-04-2012, 04:09 AM
Thread Author #1
Barometer and accelerometer: How are they useful?
Coming from a Rezound, I'm pretty sure these were features I didn't have. What benefits do having a gyroscope, accelerometer, proximity sensor, digital compass, and barometer offer the user? I understand it has to do with the phone orientation but am unclear in their benefits. Any explanation would be great! Thanks!
- 05-04-2012, 07:26 AM #2
Proximity sensor is helpful during calls as it turns off the screen when your face come within a certain range. Accelerometer is for screen rotation. Gyroscope is just a more advanced accelerometer it had 4 axises. Barometer detects air pressure, and but I don't think it has a use yet.
Sent from my Galaxy Nexus using Tapatalk 2 - 05-04-2012, 08:10 AM #3
Re: Barometer and accelerometer: How are they useful?
The barometer is a way to check altitude and will give you a faster GPS signal.
Thanked by: - 05-04-2012, 08:28 AM #4
Re: Barometer and accelerometer: How are they useful?
also useful when using maps, it will show what direction you are facing as opposed to just dot... certain games utilize them as well
Android Central - Super Member
"Don't forget to thank him/her who helped you" - 05-04-2012, 10:00 AM #5
- 05-04-2012, 10:06 AM
Thread Author #6
- 05-04-2012, 10:07 AM #7
Re: Barometer and accelerometer: How are they useful?
Gyroscope
- Provides the orientation (or attitude) of the device, it's much more accurate and reliable than accelerometers for this purpose.
Accelerometers
- Provides the magnitude and direction in which the device is moving. As the name implies, it measures the acceleration along any given axis.
- Can be used to determine orientation of the device if you use accelerometers along 3 or 4 axis, but is significantly less accurate and prone to errors.
Compass
- As the name implies, it provides you your heading. It is aligned assuming you're holding the device face up and the top of the device away from you.
- Input from the Gyroscope and Accelerometers allow for more reliable compass readings should your device not be oriented flat and face up.
Barometer
- Provides barometric pressure to aid in determining your altitude. Knowing your altitude can speed up a GPS lock. I'm not entirely sold on the success of this yet, since barometric pressure is not a constant with altitude.
"Some see the glass as half-empty, some see the glass as half-full. I see the glass as too big."
- George Carlin - 05-04-2012, 02:18 PM
Thread Author #8
- 05-04-2012, 05:00 PM #9


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