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A question about 85070E

Question asked by aubergine on Apr 28, 2006
Latest reply on Jul 20, 2006 by stoyan_ganchev
In the measurement of the permittivity, there are several sample requirements: Diameter: > 20 mm; Thickness: >|20/√ε| etc.
What does that mean? Does that mean that as long as the sample reach these requirments we can get the right ε even the sample are surrounded by metal container?