Absolute Position Encoders Using Double-Track Gray Codes

doi:10.1109/TIM.2024.3493887

2025-01-01

PRE

Ashkan Fakhri *

Abdolber Mallah Livani

DOI：10.1109/TIM.2024.3493887

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摘要

En 中文

A slight increase in the physical dimensions of the single-track gray code (STGC) encoders in exchange for using fewer reading heads (fewer bits) is the subject that is addressed in this article. A construction algorithm is proposed to combine two STGCs in order to obtain a double-track gray code (DTGC). The proposed algorithm can be repeatedly used to obtain triple-track gray codes (TTGCs) and so on. The proposed algorithm can be used to quickly obtain very high period codes with a sufficiently small number of tracks. Furthermore, it can be used to obtain desirable codes by trading off the number of tracks and the length of the code. For a given desired period, this tradeoff may provide the opportunity of using fewer bits compared to STGCs. In particular, length n period 2(n) encoders can be constructed with almost half the number of tracks of the corresponding conventional gray code encoders.

Keyword:

Reflective binary codes

Codes

Head

Magnetic heads

Encoding

Mathematical models

Radar tracking

Light emitting diodes

Heuristic algorithms

Detectors

Absolute position encoder