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Use of microwaves for sensors in the spinning industry

  • US 7,103,440 B2
  • Filed: 10/29/2002
  • Issued: 09/05/2006
  • Est. Priority Date: 12/11/2001
  • Status: Expired due to Fees
First Claim
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1. A method for determining band mass of an elongated, substantially non-twisted fiber structure in a textile spinning machine, comprising subjecting the fiber structure to microwaves such that a characteristic change of the microwaves is induced by the fiber structure, detecting and processing the changed microwave characteristic to calculate the band mass of the scanned fiber structure, and adjusting the band mass as a function of moisture content of the fiber structure, wherein a relatively constant base fiber moisture is assumed for the fiber structure, and the band mass is adjusted based on the assumed fiber moisture.

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