Estimate smartphone accelerometer bias

1. How accurate is smartphone accelerometer?
2. How do I check the accelerometer on my phone?
3. What does signal bias mean in accelerometers?

How accurate is smartphone accelerometer?

The user starts at a well known fixed location (accurate to within 5 centimeters), at which point the accelerometer in the phone is to be activated to track any further movements with respect to that fixed location.

How do I check the accelerometer on my phone?

Android App Development for Beginners

Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. Step 2 − Add the following code to res/layout/activity_main. xml. In the above code, we have taken a text view to show ACCELEROMETER sensor information.

What does signal bias mean in accelerometers?

The bias of an accelerometer is the offset of its output signal from the actual acceleration value. A constant bias error causes an error in position which grows with time. It is possible to estimate the bias by measuring the long term average of the accelerometer's output when it is not undergoing any acceleration.