Moisture-detection device

Details Moisture-detection device Moisture-detection device

2006-01-03

2006-01-03

Williams, Hezron (Department: 2856)

Measuring and testing

Moisture content or absorption characteristic of material

By residual capacity measurement

C073S073000, C073S335040

Reexamination Certificate

active

06981405

ABSTRACT:
A device for determining moisture has an LC-oscillating circuit as a transducer and an oscillator for exciting the oscillating circuit. Further, the device for determining moisture has a tuning device for frequency-wise tuning the oscillator and a measuring and evaluation circuit to determine an attenuation condition of the oscillator and to provide a signal that is proportional to a degree of moisture at the transducer. The transducer and the oscillator are coupled in a contact-free manner.

REFERENCES:
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patent: 4703237 (1987-10-01), Hochstein
patent: 5040411 (1991-08-01), Medzius
patent: 5672976 (1997-09-01), Egger et al.
patent: 5682788 (1997-11-01), Netzer
patent: 3220123 (1983-12-01), None
patent: 3437950 (1985-04-01), None
patent: 44 26 736 (1996-02-01), None
patent: 197 10 591 (1998-09-01), None
patent: 19710591 (1998-09-01), None

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