Monitoring system

A system for measuring the rate of occurrence of events in a cyclically occurring series of said events, comprising first means for sensing the occurrence of said events and for generating a train of pulses, each of said pulses representing one of said events, second means responsive to said train of pulses for providing a signal having a characteristic which represents the rate of occurrence of said events, comparator means for providing a standard value of said characteristic and for comparing said characteristic of said signal with said standard value, and indicator means responsive to said comparator means for indicating said comparison, said second means comprising a first circuit for generating a sampling time interval, and a second circuit providing said signal representing the number of said events occurring during said interval.

A system for measuring the rate of occurrence of events in a cyclically occurring series of said events, comprising first means for sensing the occurrences of said events and for generating a train of pulses, each of said pulses representing one of said events, second means responsive to said train of pulses for providing a signal having a characteristic which respresents the rate of occurrence of said events, comparator means for providing a standard value of said characteristic and for comparing said characteristic of said signal with said standard value, and indicator means responsive to said comparator means for indicating said comparison, said comparator means comprising means for adjusting said standard value.

A system for measuring the rate of operation of a cyclically operating machine, comprising first means for sensing each cycle of operation and generating a pulse in response thereto, second means for generating a sampling interval, third means responsive to said first and second means for generating a signal having a characteristic that is a function of the number of said pulses occurring during said sampling interval, preset comparator means for providing a preselected standard value and for comparing said characteristic with said standard value, and fourth means responsive to said comparator means for indicating said comparison.

A system for measuring the rate of operation of events in a cyclically operating machine, comprising first means for sensing each cycle of operation and generating a pulse in response thereto, second means for generating a sampling interval, third means responsive to said first and second means for generating a signal having a characteristic that is a function of the number of said pulses occurring during said sampling interval, comparator means for providing a standard value and for comparing said characteristic with said standard value, and fourth means responsive to said comparator means for indicating said comparison, said third means comprising an integrator, and said characteristic comprising the magnitude of a voltage.

A system for measuring the rate of operation of events in a cyclically operating machine, comprising first means for sensing each cycle of operation and generating a pulse in response thereto, second means for generating a sampling interval, third means responsive to said first and second means for generating a signal having a characteristic that is a function of the number of said pulses occurring during said sampling interval, comparator means for providing a standard value and for comparing said characteristic with said standard value, and fourth means responsive to said comparator means for indicating said comparison, said characteristic comprising the voltage magnitude of said signal, and said comparator means comprising at least one Schmitt trigger circuit connected to respond to said voltage magnitude.

A method of monitoring the rate of operation of a machine or process which operates in a cyclically repetitive manner, comprising the steps of sensing each cycle of said operation and generating a first signal in response thereto, generating a second signal representing a preselected unit of time, combining said first and said second signals to produce a third signal representing the number of said cycles occurring in said unit of time, comparing said third signal with a reference value representing a preselected standard rate of operation, and indicating the result of said comparison.

A system for measuring the rate of occurrence of events in a cyclically recurring series of said events, comprising first means connected to respond to said events and generating a first signal representing a number of the occurrences of said events, second means for generating a second signal representing a sampling time interval, third means providing a standard value of comparison representing a predetermined rate of occurrence of said events, one of said first and second signals being variable as a function of the rate of said events while the other of said first and second signals is held constant, and fourth means for providing an indication of a comparison of said variable signal with said standard value.

A monitoring system for measuring the rate of occurrence of events in a cyclically recurring series of said events, comprising first means connected to respond to said events and generating a first signal after a predetermined number of occurrences of said events, an oscillator circuit and a counter connected to to the output thereof, gating and indicator means connected to said counter for providing an indication of the count therein, and second means responsive to said first signal for transferring said count to said gating and indicator means and for resetting said counter.

A monitoring system for measuring the length of time required for the occurrence of an event, comprising an oscillator, counting means, counter actuating means connected to control flow of pulses from said oscillator to said counter to be counted, said actuating means further being connected to respond to said events to enable said pulse flow to said counter only during the time duration of said event, and indicating means connected to said counter for indicating when the count therein and reaches a predetermined limit.

A method of monitoring the rate of operation of a machine or process which operates in a cyclically repetitive manner, comprising the steps of sensing each cycle of said operation, counting the number of said cycles up to a preset number, generating a signal representing time, utilizing said signal to determine the elapsed time from a first cycle until said preset number is reached, providing a preset standard of time, comparing said elapsed time with said preset standard of time, and providing an indication of said comparison.

A method of monitoring the rate of operation of a machine or process which operates in a cyclically repetitive manner, comprising the steps of sensing each cycle of said operation counting the number of said cycles up to a preset number, generating a train of pulses at a fixed frequency, counting the number of said pulses until said preset number of cycles is reached, providing a preselected standard count of pulses, comparing said pulse count with said preselected standard count, and providing an indication of said comparison.

A method of monitoring the rate of operation of a machine or process which operates in a cyclically repetitive manner, comprising the steps of sensing each cycle of said operation and generating a first signal in response thereto, generating a second signal representing time, combining said first and said second signal to produce a third signal representing the length of time required to attain a preselected number of said cycles, comparing said third signal with a reference value representing a preselected standard rate of operation, and indicating the result of said comparison.