| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a rotary encoder and its operation method having two part groups (1, 2) which are distributed with a profile capable of mutually revolving around shaft (A) relatively, in whose first part group (1), a trigger sensor (1.1) and a plurality of the magnetic sensors (1.3, 1.4) are prepared. <P>SOLUTION: In a second part group, the first magnets (2.1, 2.4), the second magnets (2.2, 2.5) and the third magnets (2.3, 2.6) are prepared. In the part group (1, 2), the magnetic sensors (1.3, 1.4) are constituted so as to detect the magnetic fields of the first magnets (2.1, 2.4) and the third magnets (2.3, 2.6) when one full rotation is carried out. The second magnets (2.2, 2.5) and the third magnets (2.3, 2.6) can generate a trigger signal by the trigger sensor (1.1). Moreover, the first magnets (2.1, 2.4) controls the generation of the trigger signal by the trigger sensor (1.1). <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
