A device for measuring the angle of rotation of a shaft of a machine between a reference angular position and the angular position at the instant of the appearance of a feature of the operation of the machine.

摘要

P a.dispositif with the reference signal and a sender acting on the appearance of feature with a treatment group and a comparator. / p & & p & b.caracterise in that, in a manner known per se, the treatment unit 10 is connected to a logic circuit 6, 7, 8, 9, 11, 14, which combines the signals of the output of comparator 4 which present a threshold value that can, through which extends the same way of the stray signals, with the signals of an identification circuit 3, 6, the treatment unit 10 being controlled by the output signals of the comparator 4, the time interval which is running between the last overtake of the threshold value at the input ducomparateur 4 before the appearance of the output signal of the identification circuit which has a feature of the machine, and the appearance of the angular reference signal, for the treatment unit 10 for to define the angle of rotation. / p & & p & c.dispositif applicable to a machine a rotary shaft. / p