Hi,

I have been using ADIS16480 and i want to embed to my master microcontroller magnetometer and accelerometer calibration algorithm. I saw FAQ: Hard & Soft Iron Correction for Magnetometer Measurements, but i coudn't see mathematical formula on this issue and I may not rotate by 10 degrees on my systems. Because my systems hasn't got any position controlled systems. What can i calibrate to magnetometer in this situations? Can you share algorithm with mathematical formula ?

In the FAQ you reference, we provided a link to a mathematical routine that others have used to accomplish this very thing. This routine will compute the key features of the ellypsoid, which you can use to estimate the 3x3 soft and hard-iron matrix with.

http://www.mathworks.com/matlabcentral/fileexchange/24693-ellipsoid-fit

We hope to incorporate this into some sort of software utility and complementary application literature, in the future, but are not able to prioritize this at this time.