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A METHOD OF ADJUSTING FULL SCALE RANGE AND INTERMEDIATE ACCURACY OF FULLY ASSEMBLED AIR CORE MOVEMENTS

IP.com Disclosure Number: IPCOM000005768D
Original Publication Date: 1989-Aug-01
Included in the Prior Art Database: 2001-Nov-05
Document File: 1 page(s) / 75K

Publishing Venue

Motorola

Related People

Authors:
Eugene L. Wineinger

Abstract

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.