A METHOD OF ADJUSTING FULL SCALE RANGE AND INTERMEDIATE ACCURACY OF FULLY ASSEMBLED AIR CORE MOVEMENTS
Original Publication Date: 1989-Aug-01
Included in the Prior Art Database: 2001-Nov-05
Air core movements utilize a resultant vector from drive coils, to which a movable magnet on ashaft aligns. At any intended angular position of the rotating shaft, manufacturing tolerances result in a range of ratios for the drive coil magnetic vector magnitudes. This equates to a range of angular positions and thereby gives rise to the inaccuracy of intermediate (i.e. neither minimum nor maximum) shaft positions.