PURPOSE: To avoid the variation of a central voltage of an output voltage, by sensing magnetic signals of N and S recorded on a magnetic body by a magnetic resistance effect element which is disposed so that the gap which is one half the length of the N pole and the S pole is provided.
CONSTITUTION: The resistors R1 and R2 in the magnetic resistance effect element 4A have the very small width with respect to the recording width of the magnetic signal for the magnetic body 5A which is attached to the rotating body. The resistors R1 and R2 are arranged so that the gap, whose width is one half the length P of the magnetic signals, is provided. When the magnetic body 5A is rotated, the output which is synchronized with the movement of the magnetic body is obtained across the terminals V2 and a. The central voltage of said output is not varied even through the gap between the magnetic body 5A and the magnetic resistance effect element 4A is changed.
| JPS6012588 | [Title of the Invention] A magnetic detector |
| JP2023152002 | MAGNETIC ENCODER AND RANGING DEVICE |
HAYASHIDA HIROSHI
MIYASHITA KUNIO
SEKIZAWA SADAO
| JPS52121356A | 1977-10-12 | |||
| JPS54115257A | 1979-09-07 | |||
| JPS5448575A | 1979-04-17 |