Hi Ulrich and all, you kicked up an old memory. In the early 1960's a friend and I messed some with nuclear magnetic resonance and synchronous oscillators for detection of same. Later found a nice paper: Uzunoglu and White, IEEE Journal of Solid-State Circuits V. SC-20,#6, Dec.1985, p.1214-1226. Has substantially the same circuit as the web page someone noted earlier, and a lot of analysis. Basically, the problems are the same as lock-in, the fight being between essentialy the Q of the locking circuit and lock time and so forth. Interesting; when the time comes for the 64 MHz oscillator I'll try it! Don
Ulrich Bangert > Joop, > > you may also search for "synchronous oscillator". You will find for > example: > > http://www.amalgamate2000.com/radio-hobbies/radio/synchronous_oscillator.htm > > Best regards > Ulrich > >> -----Ursprungliche Nachricht----- >> Von: [email protected] >> [mailto:[email protected]] Im Auftrag von Joop >> Gesendet: Mittwoch, 10. Februar 2010 13:50 >> An: [email protected] >> Betreff: [time-nuts] injection locking >> >> >> >You can even build an injection locked divide by 5 stage. >> Choosing the >> >right oscillator topology and injection method allows high level >> >injection to be used with an LC oscillator. >> > >> >Bruce >> > >> >> Are there references to some practical circuits? That would be great. >> >> A google search on "injection locking" and "synchronous >> oscillator" results in a lot of conceptual descriptions but >> nothing that one can build, try out and study. Maybe some of >> the scientific articles or books contain circuits, but I am >> not a IEEE member. >> >> Cheers, >> Joop >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
