Altitude uses the pressure sensor in your Android device to provide altitude and rate of climb information displayed on replica analog aviation instruments. Switches are provided to turn on / off the audio and sink alarms as well as a QNH knob to adjust the sea level pressure setting. The QNH knob is dragged around the outside of the instrument dial rather than "turned" for ease of use on a touch screen.
The altitude is calculated using the barometric formula and is reasonably accurate against a mechanical altimeter up to around 10,000 feet. The variometer uses a simple scalar Kalman filter to help stabilise the needle. A future enhancement will be to implement a matrix based filter to improve the responsiveness of the varometer.
Altitude has been tested whilst soaring in sailplanes and paragliding, and is about half a second response slower than a dedicated hardware variometer but never the less provides a very usable vario.
免費玩Altitude APP玩免費
免費玩Altitude App
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| 熱門國家 | 系統支援 | 版本 | 費用 | APP評分 | 上架日期 | 更新日期 |
|---|---|---|---|---|---|---|
| 香港 Hong Kong | Android Google Play | 3.0 App下載 | 免費 | 2014-08-29 | 2015-03-12 |
