On 05-07-2009 at 23:39, Anonymous wrote:
this is off-topic but I don't where to post, so I give it a try here. I have an evaluation kit for the accelerometer LIS3LV02DL connected to an STM32. I'm pretty new to accelerometers and I have noticed that there's slight difference in gain (and perhaps offset) on each axis, which produces erroneous results. x-axis reads 16240 when perpendicular to gravity, y-axis 16480, z-axis 16033. Can anyone point me in the right direction on how to compensate and/or calibrate for these errors? Is it something wrong with the device or is it common with some deviation? I understand that you could multiply each axis value with a constant and add a constant to make all axis the same, but I want to know how You do this. Also a bit confusing when the datasheet says it's factory trimmed and no further calibration is usually needed.
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