In message <[email protected]>, Achim Vollhardt writes: >Time-Nutties, > >how about using a small uC (PIC/AVR) clocked with 100ns instruction >speed. Start = 1PPS from GPS, Stop = 60 Hz Edge? Use internal capture >hardware to count processor cycles in between.
If you really want to do this: Sample the mains signal with an ADC at around 1000kHz. Mix it down to baseband, calculate I/Q magnitudes and use ATAN2 to find phase. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [email protected] | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ 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.
