Improvements introduced in programmable digital detection systems for control of rotation axles speed limits. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in programmable digital detection systems for control of rotation axles speed limits, which are based on the application of digital integrated circuits, in order to provide relative data to measure and compare speed from a signal reference, which is capable of providing a digital signal indicative of having altered, in excess or defect, previously established levels are essentially characterized because they consist in the use of a sensor means that provides a defined number of electrical impulses for each revolution of the axis whose rotational speed is to be controlled, the pulses provided by the sensor system being combined with an electrical signal of known frequency, passing both references through respective pulse shapers that activate one or more integrated circuit digital counters, which consist of several bistable s in chain with capacity to acquire multiple different states by virtue of the binary combination that have the corresponding outputs of the flip-flops, any of said possible states being detected by means of a multiple decoder. (Machine-translation by Google Translate, not legally binding)