In message <trinity-2e0df2e8-1978-44c0-8d7f-1248885e1b2e-1404906840284@3capp-gmx-bs72>, acbern@gm x.de writes:
>Very good accuracies are achieved by thermal converters (Ballantine...). >You can do DC to AC comparison measurements with a few ppm accuracy. >But measurements are slow, and you need a nanovolt meter. And very stable surrounding temperature. Thermal converters measure the heating caused by the electric energy as a temperature increase over ambient temperature. -- 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. _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
