SU413340A1 - - Google Patents

Description

one

Devices for measuring the angle of a closed contact state are known, for example, an internal combustion engine switch-disconnector, comprising an actuator, a master oscillator and a recording unit with counting devices, indicator displays and electric valves with two separate inputs.

The purpose of the invention is to improve the measurement accuracy.

To do this, in the proposed device, the drive is made in the form of a stepper motor connected via a frequency divider to the master oscillator, and the output of the latter is connected to the inputs of electrical contacts, the second input of which is connected via a ring switch to the distributor distributor.

The drawing shows a block diagram of the described device.

The device contains a master oscillator I, frequency divider 2, electronic switch 3, scapular motor 4, recording unit 5 with ring switch 6, valves 7, counting devices 8, decoders 9 and digital display boards 10. The sensor of controlled distributor distributor is used as a sensor AND.

The device works as follows.

The master oscillator 1 pulses through the frequency divider 2 to the electronic switch 3. The stepper motor rotates the shaft of the tested distributor chopper at a speed determined by the frequency at the divider output. At the same time, the generator sends pulses to the inputs of the electric valves 7. At the time of contact closure, the distributor circuit breaker on one of the outputs, for example, the output of the ring switch, a signal appears that opens the corresponding valve and passes the pulse train corresponding to the angle of the closed contact state to the counting device. Deshifrato translates the result into a single degree measurement and displays it on a digital display board.

When the contacts are closed on the second, third, and so on facets of the cam, the process is repeated due to the occurrence of a drain on the outputs b, c, etc. of the ring switch. The signals of the master oscillator are received in other counters corresponding to the second, third, and so on. Measurements on each face appear on the corresponding digital displays.

After registration of the measurement and removal of the dispersed filter, the measurement result is reset.

Subject invention

A device for measuring the angle of a closed contact state, for example, an internal combustion engine distributor breaker, comprising an actuator, a master oscillator and a recording unit with counting devices, indicator boards and electric valves with two separate inputs, characterized in that the drive is made in the form of a scap engine connected through a frequency divider to the master oscillator, and the output of the latter is connected to the inputs of electric valves; the second input is through a ring switch connected to the switch distributor distributor.