Good afternoon.
I've installed an accelerometer on an device that can tilt around the both horizonal axes (the axes that are included in the horizontal plane and are normal to each other). Thus, in this case that accelerometer is used as inclinometer.
If one tilt the inclinometer around just one axis, we get a certain "output signal / bias" curve (which actually is a straight horizontal line). But if one tilt the inclinometer on both axes, the mentined curve is not the same anymore, suggesting that the tilting around one axis is influneces the signal output coresponding to the other axys.
We intend to optimize the situation by developing a function to compensate the allure of one of those curves in order to decrease the dependence between the signals obtained for the two axes.
Below you have aa link with the two curves:
(Click thumbnail for larger image)
In the situation comprised in that graph, the only inclination that was made was that around the axis corresponding to the red curve. Tilt angle corresponding to the blue curve was kept constant, and, it would be expected to be a straight horizntal line, not a concave curve as it is now.
In other words, we want to find a function which, depending on the inclination after the two axes give me another "blue curve", that, regardless of the tilting around the axis coresponding to the red curve, to be a horizontal line right across the field.
I hope you understoo what I wanted to say, but if not, please let me know and I will add more details.
What do you think I could try ?
I've installed an accelerometer on an device that can tilt around the both horizonal axes (the axes that are included in the horizontal plane and are normal to each other). Thus, in this case that accelerometer is used as inclinometer.
If one tilt the inclinometer around just one axis, we get a certain "output signal / bias" curve (which actually is a straight horizontal line). But if one tilt the inclinometer on both axes, the mentined curve is not the same anymore, suggesting that the tilting around one axis is influneces the signal output coresponding to the other axys.
We intend to optimize the situation by developing a function to compensate the allure of one of those curves in order to decrease the dependence between the signals obtained for the two axes.
Below you have aa link with the two curves:
(Click thumbnail for larger image)
In the situation comprised in that graph, the only inclination that was made was that around the axis corresponding to the red curve. Tilt angle corresponding to the blue curve was kept constant, and, it would be expected to be a straight horizntal line, not a concave curve as it is now.
In other words, we want to find a function which, depending on the inclination after the two axes give me another "blue curve", that, regardless of the tilting around the axis coresponding to the red curve, to be a horizontal line right across the field.
I hope you understoo what I wanted to say, but if not, please let me know and I will add more details.
What do you think I could try ?
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