[time-nuts] Recommendations for Mains Power Monitor / Logger
Hal Murray
hmurray at megapathdsl.net
Sat Mar 10 18:51:43 EST 2018
I know of two ways to monitor frequency. One is to use one of tvb's PICs.
That needs a good frequency reference, probably a GPSDO.
The other is to use the PPS input on a Linux box. That uses the system clock
so you meed a good NTP setup.
Some of the APS family of UPS boxes will monitor the voltage. You can ask
what was the min/max since the last time I asked? (as well as what is the
current voltage) That's good enough to catch glitches.
If you want to measure current, I'd start with a current transformer. I
don't know of anybody using them for long term measurements. I've used them
with a scope to look at startup transients.
--
These are my opinions. I hate spam.
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