[time-nuts] Mains frequency

[Bill Dailey]

Understood.. I have it every 6 cycles now to sync up with his
synchrophaser.  I wrote the script so I can specify the number of cycles I
average.  Right now it is at 6 because his measures are every 0.1s.


On Sat, Nov 16, 2013 at 2:52 AM, Chris Albertson
<albertson.chris at gmail.com>wrote:

> Your method tosses out a lot of data.  You can't see transients.  Ideally
> rather then record a 1 second average you'd record the time of EVERY zero
> crossing.  It sounds like a lot of data but not really.   You only record
> 32 bits 60 times each second.  That is 240 bytes per second.
>
> On Fri, Nov 15, 2013 at 6:51 PM, Bill Dailey <docdailey at gmail.com> wrote:
>
> >
> > 110vac-->5vac-->100ohm-->picpet event---> python average 60 cycles--> log
> > freq every second.
>
>
> --
>
> Chris Albertson
> Redondo Beach, California
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-- 
Doc

Bill Dailey
KXØO