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Title: Acoustic methods to monitor sliver linear density and yarn strength

Abstract

Methods and apparatus are provided for monitoring sliver and yarn characteristics. Transverse waves are generated relative to the sliver or yarn. At least one acoustic sensor is in contact with the sliver or yarn for detecting waves coupled to the sliver or yarn and for generating a signal. The generated signal is processed to identify the predefined characteristics including sliver or yarn linear density. The transverse waves can be generated with a high-powered acoustic transmitter spaced relative to the sliver or yarn with large amplitude pulses having a central frequency in a range between 20 KHz and 40 KHz applied to the transmitter. The transverse waves can be generated by mechanically agitating the sliver or yarn with a tapping member.

Inventors:
 [1];  [1];  [2]
  1. Naperville, IL
  2. Downers Grove, IL
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
870844
Patent Number(s):
5606113
Assignee:
University of Chicago (Chicago, IL)
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
acoustic; methods; monitor; sliver; linear; density; yarn; strength; apparatus; provided; monitoring; characteristics; transverse; waves; generated; relative; sensor; contact; detecting; coupled; generating; signal; processed; identify; predefined; including; high-powered; transmitter; spaced; amplitude; pulses; central; frequency; range; 20; khz; 40; applied; mechanically; agitating; tapping; generated signal; transverse waves; amplitude pulse; waves couple; acoustic transmitter; acoustic sensor; /73/19/

Citation Formats

Sheen, Shuh-Haw, Chien, Hual-Te, and Raptis, Apostolos C. Acoustic methods to monitor sliver linear density and yarn strength. United States: N. p., 1997. Web.
Sheen, Shuh-Haw, Chien, Hual-Te, & Raptis, Apostolos C. Acoustic methods to monitor sliver linear density and yarn strength. United States.
Sheen, Shuh-Haw, Chien, Hual-Te, and Raptis, Apostolos C. Wed . "Acoustic methods to monitor sliver linear density and yarn strength". United States. https://www.osti.gov/servlets/purl/870844.
@article{osti_870844,
title = {Acoustic methods to monitor sliver linear density and yarn strength},
author = {Sheen, Shuh-Haw and Chien, Hual-Te and Raptis, Apostolos C},
abstractNote = {Methods and apparatus are provided for monitoring sliver and yarn characteristics. Transverse waves are generated relative to the sliver or yarn. At least one acoustic sensor is in contact with the sliver or yarn for detecting waves coupled to the sliver or yarn and for generating a signal. The generated signal is processed to identify the predefined characteristics including sliver or yarn linear density. The transverse waves can be generated with a high-powered acoustic transmitter spaced relative to the sliver or yarn with large amplitude pulses having a central frequency in a range between 20 KHz and 40 KHz applied to the transmitter. The transverse waves can be generated by mechanically agitating the sliver or yarn with a tapping member.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}

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