Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Distributive type parameters
Reexamination Certificate
2006-06-13
2008-09-09
Nguyen, Vincent Q. (Department: 2831)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Distributive type parameters
C324S458000, C324S633000, C324S640000, C324S643000
Reexamination Certificate
active
07423435
ABSTRACT:
A grammage measuring apparatus including a dielectric resonator which is arranged only at one side surface of a sample; a shielding container with which the dielectric resonator is substantially covered except for a sample measuring surface; a microwave excitation device which causes the dielectric resonator to generate an electric field vector; a detection device which detects transmission energy or reflection energy by the dielectric resonator; a storage device in which a calibration curve indicating a resonance frequency shift amount for a grammage is stored; and a data processing device which calculates the grammage of a measuring sample from the calibration curve and measurement result of the resonance frequency shift amount of the measuring sample.
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Nagata Shin-ichi
Sawamoto Hidetada
Baldridge Benjamin M
Edwards Angell Palmer & & Dodge LLP
Nguyen Vincent Q.
Oji Paper Co. Ltd.
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