Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Distributive type parameters
Patent
1995-04-03
1996-09-10
Tokar, Michael
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Distributive type parameters
324633, G01R 2704
Patent
active
055549357
ABSTRACT:
A method for nondestructively determining the mass of arbitrarily shaped dielectric objects is disclosed. The object is inserted into a microwave resonant cavity coupled to a microwave radiation source and a measuring circuit. Measurements of shift of resonant frequency and change in the transmission coefficient due to the presence of the object in the cavity are made. The mass is determined from using this information. The process is particularly useful for determining the mass of articles that are too hot or too cold or too fragile to handle and for articles that are irregular or variable in shape.
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Kraszewski Andrzej W.
Nelson Stuart O.
Fado John
Poulos Gail E.
Silverstein M. Howard
The United States of America as represented by the Secretary of
Tokar Michael
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