Jim, It is very much on topic!
Rob Kimberley -----Original Message----- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Jim Palfreyman Sent: 08 July 2009 23:37 To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] 10811 crystal orientation All, Can you please follow John's instructions and stay on topic. All this new age pseudo-science talk of "crystal orientations" and "g sensitivity" does not belong in this group. Thank you. Jim 2009/7/9 Robert Atkinson <robert8...@yahoo.co.uk> > > Hi Antonio, > Have a look at http://www.realhamradio.com/GPS-oven-journey.htm for > internal pictures. > The crystal element is a disc mounted parallel to the flat end of the > can, see http://www.bliley.com/index_088.htm > > Robert G8RPI. > > --- On Wed, 8/7/09, iov...@inwind.it <iov...@inwind.it> wrote: > > > From: iov...@inwind.it <iov...@inwind.it> > > Subject: Re: [time-nuts] 10811 crystal orientation > > To: "time-nuts" <time-nuts@febo.com> > > Date: Wednesday, 8 July, 2009, 7:01 PM Hi Chad, > > > > the sketch you sent seems to indirectly answer my question, as I > > could rely on the axis of minimum "g" sensitivity to orient my three > > 10811 assemblies, but for my purpose it seems that there is still a > > margin of ambiguity. I don't take from the sketch how the crystal is > > actually fitted > > (vertically?) into the case. As far as I know, "g" > > sensitivity depends mainly on how the crystal "weights" on its > > suspensions (contacts), and this is secondary for me. > > So, I would be pleased to know how the crystal is actually oriented, > > say regardless of the "g" sensitivity. > > > > Thanks. > > Antonio I8IOV > > > > > Hi Antonio, > > > > > > Please see the attached diagram from the 10811A > > service manual. Minimum and > > > maximum G-sensitivity axes are shown. Since the > > other variants of 10811 are > > > all internally constructed the same, I would not > > expect a difference for the > > > -60111. > > > > > > - Chad. > > > > > > > > > > > > On Wed, Jul 8, 2009 at 10:27 AM, iov...@inwind.it > > <iov...@inwind.it> > > wrote: > > > > > > > Dear all, > > > > > > > > does anybody out there know the orientation of > > the crystal faces relative > > > > to the outer case in a 10811-60111? > > > > > > > > (The sense of the question is that we are > > considering building a 3-axis > > > > apparatus for gravity-related tests. Note, based > > on our tentative > > > > modelization, crystals are not requested to work > > as accelerometers). > > > > > > > > Antonio I8IOV > > > > > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.