reading accelerometer value

Question

I'm quite new to android development, and just know started to learn how to use the sensors.

I started reading about the sensors in the the developers.android site, and came across this article.

it says there that in order to get the real acceleration you should apply a high pass filter, because the sensor reads also the gravity force.

my question is: why not just subtract the gravity force (g) from the value?

In you question you use the word subscribe. Do you mean subtract instead as in "subtract the gravity force (g) from the value?" — Richard Chambers, Sep 27 '12 at 12:24

score 2 · Accepted Answer · edited May 23 '17 at 11:48

2

Because the actual sensed gravity depend on the angle of your device to the vertical.

A high pass will filter constants (and slow movements)

edited May 23 '17 at 11:48

Community

answered Sep 27 '12 at 12:15

njzk2

1 Answers1