Method of measuring dielectric constant of powder

Details Method of measuring dielectric constant of powder Method of measuring dielectric constant of powder

1993-10-25

1995-09-19

Wieder, Kenneth A.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

361281, G01N 2722

Patent

active

054518822

ABSTRACT:
Powder and a liquid medium are introduced between a pair of electrode members which are opposed to each other with a constant space, formed there between and an apparent dielectric constant of a composite system of the powder and the liquid medium is measured with a powder volume ratio being set at 0.45 to 0.55 and a measuring frequency of at least 1 MHz. The measured value is applied to the logarithmic mixing rule or the Lichtone-Rother equation, to find the dielectric constant of the powder. It is possible to reliably find the dielectric constant of the powder with application of the logarithmic mixing rule or the Lichtone-Rother equation.

REFERENCES:
patent: 3774238 (1973-11-01), Hardway
patent: 4482478 (1984-11-01), Shaw

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