Time interval measurement apparatus

Details Time interval measurement apparatus Time interval measurement apparatus

1978-03-20

1982-09-21

Tokar, Michael J.

Electricity: measuring and testing

Electrical speed measuring

Including 'event' sensing means

324121R, G04F 800

Patent

active

043509533

ABSTRACT:
A triggerable oscilloscope having a digital clock selectably connected to two digital counters accurately measures a time interval between two recurring events. The first digital counter is connected to the digital clock to count clock pulses during a timer interval between the initiation of a horizontal sweep signal and the occurrence of the first recurring event. A second digital counter is connected to the digital clock to count clock pulses during a time interval between the initiation of a sequent horizontal sweep signal and the occurrence of the second recurring event. A subtractor circuit coupled to the first and second digital counters subtracts the count of the first digital counter from the count of the second digital counter and determines the time interval between the first and second recurring events.
Time averaging techniques increase the accuracy of the time interval measurements for high speed recurring events by accumulating counts during a plurality of horizontal sweep signals. Predivide techniques are used for low speed recurring events to limit the number of counts accumulated during a horizontal sweep signal to a number compatible with the capacity of the digital counters.

REFERENCES:
patent: 3551733 (1970-12-01), Johnson
patent: 3975684 (1976-08-01), Mordan
patent: 4034291 (1977-07-01), Allen
patent: 4065664 (1977-12-01), Kristof

Affiliated with

Also associated with

Rating

Time interval measurement apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Time interval measurement apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time interval measurement apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2078192