Thanks Venkat.
Actually we are planning to use 9-DOF ADIS 16405, something that is required in other project. How would we measure RPM with a 9 DOF sensor ?
1. Would I simply read x,y,z values of gyro and do a vector addition ? so the magnitude of resultant RPM would be Square root (gx*gx + gy*gy + gz*gz ) ?
2. How would be determine axis of rotation in such a use case ?
3. Per ADIS 16405 data sheet - gyro digital range scaling can be +/- 300 deg/sec - I am assuming this value refers to each of x, y and z direction individually. Is that right ?
Thanks for all the help coming my way.