Abstract
Already reported method named feedback pulse-lengthener circuit, capable of measuring peak value of narrow impulse is introduced. Negative feedback pulse-lengthener circuit can detect an impulse as narrow as 14 nsec, with linear relationship between voltmeter reading and the peak value of the applied impulse for the limitted range of peak value.
Positive feedback pulse-lengthener circuit can detect an impulse as narrow as 1 nsec. Linear relationship between voltmeter reading and peak value of an impulse holds in this case.
To measure higher peak value of an impulse, a voltage divider will be needed, preattached to the feedback pulse-lengthener circuit.
To detect more narrow impulse, an amplifier or a buffer of higher speed will be needed. An amplifier or a buffer consisting of ultra high frequency discrete elements is preferable to rather than high speed operational amplifier.
