Automatic self-calibration of an incremental motion encoder

Author

Orton, P.A. ; Poliakoff, J.F. ; Hatiris, E. ; Thomas, P.D.

Author_Institution

Dept. of Comput., Nottingham Trent Univ., UK

Volume

3

fYear

2001

fDate

2001

Firstpage

1614

Abstract

Our recently developed patented instrument, the Incremental Motion Encoder (IME) is able to monitor the rotation of mechanical systems. Using the disc from an Incremental Shaft Encoder, but with three or more read heads instead of one, the IME is able to resolve small transverse movements of the shaft as well as angular position. However, the accuracy of the measurements is limited by small distortions in the grating lines of the disc, due either to damage or to manufacturing errors. This paper presents algorithms which use data from the IME to compensate for such errors in the disc, thus enabling automatic self-calibration of the IME

Keywords

angular measurement; calibration; encoding; error compensation; machine bearings; quantisation (signal); angular position; automatic self-calibration; bearing condition; disc; distortions; error compensation; grating lines; incremental motion encoder; incremental shaft encoder; manufacturing errors; read heads; rotation of mechanical systems; small transverse movements; Data analysis; Electronic mail; Extraterrestrial measurements; Gratings; Information analysis; Instruments; Mechanical systems; Monitoring; Position measurement; Shafts;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE

Conference_Location

Budapest

ISSN

1091-5281

Print_ISBN

0-7803-6646-8

Type

conf

DOI

10.1109/IMTC.2001.929476

Filename

929476