Use of microwaves for sensors in the spinning industry
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United States of America Patent
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Sep 5, 2006
Grant Date -
Aug 14, 2003
app pub date -
Oct 29, 2002
filing date -
Dec 11, 2001
priority date (Note) -
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Abstract
The invention uses microwaves in the spinning industry in order to determine the band mass of an elongated, substantially non-twisted fiber structure. In addition, a method for measuring the sliver mass from the frequency detuning and the damping of resonance signals of a microwave sensor while taking into consideration the moisture of the fiber structure with a computer is suggested. Likewise, a corresponding spinning preparation machine and a laboratory device for measuring the sliver mass are part of the invention. Lastly, a method and a spinning preparation machine for recognizing foreign matter in a moved fiber structure with the aid of microwaves is suggested.
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