Method and apparatus for estimating surface moisture content...

Details Method and apparatus for estimating surface moisture content... Method and apparatus for estimating surface moisture content...

2007-11-06

2007-11-06

Wachsman, Hal (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Quality evaluation

C356S237100, C356S237200, C356S402000, C356S403000, C356S404000, C356S405000, C356S406000, C356S369000, C356S431000, C250S559450, C250S553000, C250S559420, C209S555000, C428S528000, C162S260000, C700S230000

Reexamination Certificate

active

10856883

ABSTRACT:
Method and apparatus for estimating surface moisture content of wood chips employing a surface moisture measurement obtained from a non-contact surface moisture sensor, which measurement is calibrated with values of a set of optical parameters, such as HSL color camera signals, representing light reflection characteristics of the wood chips in order to estimate the surface moisture content thereof.

REFERENCES:
patent: 4755743 (1988-07-01), Jakkula
patent: 6175092 (2001-01-01), Binette et al.
patent: 6493076 (2002-12-01), Laitinen
patent: 6526119 (2003-02-01), Lappalainen et al.
patent: 2004/0059694 (2004-03-01), Darken et al.
Swedish Pulp and Paper Research Institute, Proceedings, Control System 2002, Jun. 3-5, 2002, Stckholm, Sweden.

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