Apparatus and method for measuring very accurately the time...

Details Apparatus and method for measuring very accurately the time... Apparatus and method for measuring very accurately the time...

G - Physics

04

F

G04F 10/00 (2006.01) G04F 10/04 (2006.01) G04F 10/10 (2006.01)

Patent

CA 2169792

An electronic device comprising a clock, means pulsed by the clock to effect a primary chronometry (CHR1) of an event from a nearby clock cycle, logic means controlled to produce a timing pulse the start of which coincides with the event and the finish of which occurs at the R'th impulse of the clock after the start, a constant time circuit comprising a filter (FPB) of chosen characteristics arranged to receive the timing pulse, to generate in response an electrical signal having a duration greatly superior to that of the timing pulse, and means suitable for operating on a chosen portion of the response to the filter for measuring a physical value relative to the electrical signal and representative of the duration of the timing pulse so as to enable thereby a fine chronometry of the event.

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