Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Distributive type parameters
Patent
1997-11-20
2000-02-15
Ballato, Josie
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Distributive type parameters
324643, 324634, G01N 2300
Patent
active
060257245
ABSTRACT:
A method of determining the moisture content of material on a bobbin featuring a hollow core, the method comprising the steps of: (a) transmitting a plurality of microwaves substantially through a portion of the bobbin, such that the microwaves are transmitted microwaves; (b) receiving the transmitted microwaves such that the microwaves are received microwaves; (c) determining a phase shift and an attenuation from the received microwaves; (d) repeating steps (a) to (c) for at least a portion of the material on the bobbin, such that a plurality of phase shifts and a plurality of attentuations is obtained; (e) using at least one empirical factor selected from the group consisting of weight of the bobbin, temperature of the bobbin, shape of the bobbin and type of the material to correct the plurality of attenuations, producing a plurality of corrected attenuations; (f) calculating a raw moisture content of the material from the corrected attenuations; (g) correcting the plurality of phase shifts for an artefact caused by the hollow core, such that the plurality of phase shifts becomes a plurality of corrected phase shifts; (h) determining a density of the material from the corrected phase shifts; and (i) calculating a final moisture content of the material from the density and from the raw moisture content.
REFERENCES:
patent: 2659860 (1953-11-01), Breazeale
patent: 3360721 (1967-12-01), Pullman
patent: 3644826 (1972-02-01), Cornetet, Jr.
patent: 3810005 (1974-05-01), Bennion et al.
patent: 3815019 (1974-06-01), Wiles
patent: 3829764 (1974-08-01), Bosisio
patent: 4352059 (1982-09-01), Suh et al.
patent: 4361801 (1982-11-01), Meyer et al.
patent: 4500835 (1985-02-01), Heikkila
patent: 4546311 (1985-10-01), Knochel
patent: 4578998 (1986-04-01), Gard
patent: 4675595 (1987-06-01), Hane
patent: 4789820 (1988-12-01), Parrent, Jr. et al.
patent: 4962384 (1990-10-01), Walker
patent: 4991915 (1991-02-01), Thompson et al.
patent: 5333493 (1994-08-01), Cutmore
patent: 5581191 (1996-12-01), Yamaguchi
patent: 5619143 (1997-04-01), Stevens et al.
patent: 5621330 (1997-04-01), Greenwald et al.
Greenwald Alexander
Moshe Danny S.
Ballato Josie
Friedman Mark M.
Malcam Ltd.
Solis Jose M.
LandOfFree
Device and method for determining the moisture content of packag does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device and method for determining the moisture content of packag, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and method for determining the moisture content of packag will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1908607