Not that I'm an expert on this but, in the 10 Meg and 100 Meg ranges, I believe a variety of issues, including the triboelectric effect, humidity and surface contamination are going to be big factors, especially if you expect to maintain anything close to 8.5 digit accuracy.
https://ims-resistors.com/wp-content/uploads/2017/03/TN-006.pdf Wayne On Tue, Jun 11, 2019 at 11:05 AM Dr. David Kirkby < [email protected]> wrote: > I'm located in Althorne, Essex (CM3 6DT). I'd like to get a couple of > resistors (10 M and 100 M) measured on an 8.5 digit meter, then compare > them to what a 34970A data acquisition unit says. I don't want to spend a > fortune on very high-end resistors, so bringing the unit to a 3458A, and > measuring the resistor on two meters reasonably close in time, should be > enough. > > There are some issues with these data acquisition meters, which impacts > their stability. It does not help the fact that there's no S/N on it, so i > don't now if it has any particular fault. > > -- > Dr David Kirkby Ph.D C.Eng MIET > Kirkby Microwave Ltd > Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, > Essex, CM3 6DT, United Kingdom. > Registered in England and Wales as company number 08914892 > https://www.kirkbymicrowave.co.uk/ > Tel 01621-680100 / +44 1621-680100 > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
