[time-nuts] 5950 Crystal impedance meter manual

Magnus Danielson magnus at rubidium.dyndns.org
Thu May 24 02:07:36 EDT 2018


Hi Bernd,

On 05/24/2018 07:40 AM, Bernd Neubig wrote:
> Hello,
> on the website of my company you can find a list of papers on the subject of crystal measurement techniques.
> http://www.axtal.com/English/TechnicalNotes/TechnicalArticlesPublications/LiteratureaboutQuartzCrystals/
> 
> The actual standard procedure for crystal  measurement is by using modern network analyzers with error correction, as given in the IEC publication 60444-5. 
> A description of the method and its variants can be found in my 2012 paper listed on the mentioned website.

I was hoping you would chime in on this thread eventually. Looks very
interesting.

It seems I should do some software processing after sweeping using my
HP4195A. It hss some internal matching, but you have warned that it gets
confused about wide-band or narrow-band properties :)

> Enjoy

Always! :)

Cheers,
Magnus

> Bernd DK1AG
> 
> 
> -----Urspr√ľngliche Nachricht-----
> Von: time-nuts [mailto:time-nuts-bounces at febo.com] Im Auftrag von Brooke Clarke
> Gesendet: Mittwoch, 23. Mai 2018 20:13
> An: timeok at timeok.it; Discussion of precise time and frequency measurement <time-nuts at febo.com>
> Betreff: Re: [time-nuts] 5950 Crystal impedance meter manual
> 
> Hi Luciano:
> 
> I have some web pages about crystals and testing them:
> http://www.prc68.com/I/CrystalImpedanceMeters.html - Crystal Impedance Meters (Saunders 150) http://www.prc68.com/I/Xtal.shtml#TE - Crystals in general & Test Equipment (see Trivia below) http://www.prc68.com/I/Xam.html - Crystal Activity Meters http://www.prc68.com/I/Xec.shtml - Equivalent Circuit http://www.prc68.com/I/4395A.shtml#ZT - The Z transform method is also used in commercial crystal test sets like the HP E4915, E4916, E5100.
> 
> Trivia: The HP 4194 may be the only instrument that can really characterize watch crystals ( 32768 Hz) for impedance which is in the meg Ohms range.  Some of the HP network analyzers can fit swept frequency data into an equivalent crystal equivalent circuit.
> 
> --
> Have Fun,
> 
> Brooke Clarke
> http://www.PRC68.com
> http://www.end2partygovernment.com/2012Issues.html
> 
> -------- Original Message --------
>>     Hi all,
>>     I found this Crystal Impedande Meter produced by RFL Industries inc, Boonton.
>>     I would like to understand how to use it and I do not have any documentation.
>>     I'm not even able to figure out if it works properly.
>>     I would like to ask you if someone owns the service/operating manual and can share it with me.
>>     Look at the picture thanks
>>     Luciano
>>
>>
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