If you’re familiar with using a compass (the tool that points to magnetic north, not the one that makes circles) the concept of holding the device level makes sense. It must be level for the ...

The most commonly used tilt sensor in inclinometers is an electrolytic ... of the antenna is normally measured using a flux gate compass, which is an electronic version of the familiar mechanical ...

However, this calibration setting can be altered by errors in the motion sensor. We recommend you recalibrate it so the compass will work properly ... If you want to reach a completely horizontal ...

Specifications include an accuracy to 1° azimuth, a 0.1° resolution, tilt-compensation up to ±60°, 0.1° resolution for roll and pitch, and a 50-kg shock rating. The compass also features a ...

and determine the tilt of the phone (tilt sensor) but not the direction the phone faces (compass). An example of the problem this presents is that a user could turn in place holding the phone in ...