Device for interference-free determination of the adjustment or setting of an angle or path of a carrier exhibiting coded information

摘要

In one device, a rotatable coding disk is provided as carrier on which angle and/or distance information is digitally coded in the form of annularly arranged openings passing through the coding disk. To ensure interference-free angle measurement and transmission, one pair of optical fibres is allocated to each annular digital information track formed by the openings. In each case, one optical fibre of a pair of optical fibres scans either the top or the bottom of the coding disk with one end whilst the other ends of these optical fibres are in each case connected to an optical fibre branch. The optical fibre branches connect the optical fibres to in each case one optical feeder fibre which is connected either to a transmitter sending out short-time light pulses or to a receiver receiving the light pulses. In each case, one optical fibre pair delays the light pulses compared with an adjacent preceding pair of optical fibres in such a manner that when a light pulse is sent out by the transmitter, the receiver receives a serial message of pulses which contains the distance or the angle of the coding disk as digital information coded compared with the reference quantity. The coding disk of the device can be preferably coupled to a flap, which can be adjusted on the basis of a steering command, a rudder or the like on vehicles. <IMAGE>