Circuit arrangement for measuring pulse widths

Details Circuit arrangement for measuring pulse widths Circuit arrangement for measuring pulse widths

1978-06-23

1980-09-16

Tokar, Michael J.

Horology: time measuring systems or devices

Time interval

Electrical or electromechanical

307293, G04F 800

Patent

active

042232678

ABSTRACT:
A pulse width measuring apparatus including a threshold-level trigger, which receives the pulses to be measured and a threshold voltage. At the instant at which the pulse voltage exceeds the threshold voltage the threshold-level trigger starts a time-measuring device which is arrested at the end of each pulse, so that the measured time indicates the pulse width. The threshold voltage is supplied by the tapping of a voltage divider which is connected to the output of a sample and hold circuit that is triggered after the end of the rising flank of each pulse to sample and store the value of the pulse amplitude. According to a preferred embodiment, a similar arrangement is provided for arresting the time-measuring device when the pulse voltage falls below a second threshold voltage.

REFERENCES:
patent: 3312894 (1967-04-01), Blake et al.
patent: 3585500 (1971-06-01), Grubel

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