CHRONOTRON_CIRCUIT_MEASURES_COAX_DELAY

Published:2009/7/17 2:40:00 Author:Jessie | From:SeekIC

econdary-emission tube V1 (EPP-60) in blocking oscillator generates millimicrosec pulses that are fed to unknown cable through anode transformer. Pulse reflected back from open-circuited end of cable is coupled into grid through same transformer to initiate new pulse. Resulting pulse repetition rate, proportional to cable delay, is measured with 10.Mc digital counter-E. F. Laine, Getting Subnanosecond Precision in Coax Cable Delay Measurements, Electronics, 36:5, p 39-41.



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