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Solid sample with Performance Probe - 'insertion' required?

Question asked by jaykay on Jul 30, 2008
Latest reply on Jul 16, 2009 by stoyan_ganchev
Hello,

I am using the Performace Probe (that come with the Dielectric Probe Kit) with an N5230A PNA Analyser and eCal unit. While measurements for liquids look just fine, I get negative e' and e'' values when I try to measure flat solid samples.

There appears to be a discrepancy between the 'insertion' requirements for the Performance Probe on the spec sheet for the Dielectric Probe Kit (Page 8 on http://cp.literature.agilent.com/litweb ... 0222EN.pdf ; relevant section attached as .jpg):

MUT assumptions for Performance Probe: "...Solids have a single, smooth, flat surface with gap-free contact at the probe face..." [Implying that the probe is fine for measuring flat solids]
Sample size Requirements: "...Minimum 5 mm insertion and 1 mm around tip of probe..." [Implying that the probe has to somehow be inserted into the flat solid]

Can anyone help me here?

Thanks,

KJ  

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