| 摘要 |
A valve-position output apparatus capable of adequately detecting valve-positions on an optical basis. The valve-position output apparatus for a valve comprises an interlocking member arranged to move in sync with open and close operations of the valve, a position detecting aperture formed in said interlocking member, an optical encoder having a light-emitting section and a light-receiving section which are arranged opposed to each other with interposing the interlocking member therebetween, digital valve-position signal generating means for generating a digital valve-position signal on the basis of a signal from the optical encoder, and initial setting means for initializing the digital valve-position signal generating means so as to match the digital valve-position signal of the digital valve-position signal generating means with an actual valve position.
|
