Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Modern, Hi Freq, small capacitors have Hi Q (low ESR).
Often measuring jigs have higher resistance.
The calibration of the jig correct sistematic errors, but often a part of the resistance is involved on the contact and may be reduced and made stable only with the manual job of a higly skilled and expert operator.
Surfaces should be clean, free of oxidation, contact should be zero-lenght, be free from resistive metal/alloy (like sn-pb) etc.
The use of an VNA give higth uncertainty because the observed value is near to the external circle of the Smith Chart. The old Q-meter is better than VNA.
I don't think so.According my experiences,VNA can give more stable results than some general LCR
equipements do.But you should take care of your model of capacitor.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
