초록 ▼

A magnetic encoder system comprising a rotary disk formed thereon with a succession of discrete magnetic encoding units each of which consists of a pair of opposed magnetic poles (N, S) and extends in alignment with a radial direction of the rotary disk. These magnetic encoding units are formed succ

A magnetic encoder system comprising a rotary disk formed thereon with a succession of discrete magnetic encoding units each of which consists of a pair of opposed magnetic poles (N, S) and extends in alignment with a radial direction of the rotary disk. These magnetic encoding units are formed successively adjacent to the periphery of the disk and have alternating magnetic polarities. A magnetic sensing head is disposed substantially coplanar with the rotary disk and juxtaposed with the periphery of the disk across a small magnetic gap spacing.

대표청구항 ▼

A magnetic encoder system comprising: a substantially flat rotary disk, said disk having formed thereon a succession of radially elongated discrete magnetic encoding units, each of said radially elongated discrete magnetic encoding units consisting of a discrete pair of radially separated opposed ma

A magnetic encoder system comprising: a substantially flat rotary disk, said disk having formed thereon a succession of radially elongated discrete magnetic encoding units, each of said radially elongated discrete magnetic encoding units consisting of a discrete pair of radially separated opposed magnetic poles (N,S), said units having radial lengths greater than the thickness of said disk; and a magnetic sensing head juxtaposed with said disk for successively sensing said encoding units as the disk is rotated to measure an angular displacement thereof, such of said encoding units, with said opposed magnetic poles extending substantially in alignment with a radial direction of said disk.