Use of a `look-up' table improves the accuracy of a low-cost resolver-based absolute shaft encoder
S. K. Kaul, R. Koul, C. L. Bhat, I. K. Kaul, A. K. Tickoo · Measurement Science and Technology · 1997
The accuracy of a low-cost, resolver-based 14-bit absolute encoder has been improved significantly from about 10 to about 2 arcmin (the resolution limit) by the use of a `look-up' table. The methodology adopted for generating this table and incorporating it into the drive-system software of our four-element -ray telescope array is described.