Device for monitoring quasi-periodic processes

摘要

The present invention relates to a device for monitoring quasi-periodic processes which comprises a working pulse source 1 and a calibration pulse source 2, the latter being connected to a divider 3 which is linked with a monostable multivibrator 4, a second output of which is connected to a first memory 15, whilst the latter is linked, via a second memory 7 and a first logic circuit 8, with a display unit 6, whereas a reversible counter 9 is connected to a decipherer 10. According to the invention, an operating-state switch 11 is connected, respectively to the first logic circuit 8 to a second, a third and a fourth logic circuit 12, 13 and 14 and to the input R of a flip-flop 15, whilst the second, third, fourth and fifth inputs and the output of the second logic circuit 12 are connected respectively to the working pulse source 1, to the calibration pulse divider 3, to the calibration pulse source 2 and to the output Q of the flip-flop 15, and to the monostable multivibrator 4. Application to the control and distribution of seeds in an automatic agricultural seeder. <IMAGE>