Apparatus for counting crimp in fibers
AssigneeAkzona Incorporated
InventorJeffrey M. Craig
Life of this patent
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Abstract
An apparatus is provided for counting crimp in fibers or filaments by moving a cell containing a specimen through a laser beam and detecting changes in radiation scattered by the crimped fiber. The radiation is observed by means of suitable electronic circuitry and a photodetector.
Claims10
An apparatus for counting crimps in a unit length of a fiber, comprising means for generating a laser beam, a plate having a slit through which the laser beam is passed, a cell to hold the fiber in a fixed position, means for moving the cell transversely through the laser beam lengthwise of the fiber, means for conducting pulses from scattered radiation caused by crimps in the fiber being moved through the laser beam, means for converting pulses from scattered radiation to electrical pulses, and means for counting electrical pulses, whereby as the fiber is moved transversely through the laser beam, pulses from scattered radiation caused by fiber crimps are conducted to the converting means, converted to electrical pulses, and counted, thereby counting the crimps in the fiber.
Dependencies are inferred from the claim text.