Boots – shoes – and leggings
Patent
1986-02-18
1988-06-07
Lall, Parshotam S.
Boots, shoes, and leggings
364567, 73 76, 324 61R, 177 25, G01G 716, G01N 502, G01R 2726
Patent
active
047501430
ABSTRACT:
A device for determining the moisture content of a material which includes a micro wave heating unit (1) for heating a sample of the material which is under investigation and a weighing device (3) for weighing the sample during heating and providing signals representing a series of measurements of the weight of the sample at specific times. The weighing device is connected to a processing unit (4) which is a microprocessor and which includes a computer (9) which produces signals representing the loss of weight of the sample in the course of heating and which computes the parameters of a asymptotic function and which represents the loss of weight of the sample in the course of time. There is also a calculator (11) for determining the differences between two asymptotic values, and a comparator (12) for comparing the differences with a reference value representing the acceptable uncertainty in regard to the moisture content of the material. There is also a restoring device for restoring the asymptotic values when the differences reach values which are equal to or less than the reference value.
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Boury Bernard
Heitz Georges
Philippe Jean
Dixon Joseph L.
Institut de Recherches Siderurgie Francaise
Kopacz Wm. J.
Lall Parshotam S.
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