How to remove Gravity factor from Accelerometer readings in Android 3-axis accelerometer

Question

Can anyone help on removing the g factor from accelerometer readings?

I am using SensorEventListener with onSensorChanged() method for getting Sensor.TY

Answer 1

You can use a low-pass filter.

Do this for each of your sensor values:

g = 0.9 * g + 0.1 * v

Where v is your current sensor value and g is a global variable initially set to zero. Mind that you'll need as many g variables as you have axes.

With v = v - g you can eliminate the gravity factor from your sensor value.