Monitoring tension in tensioned longitudinally moving elongate e

Details Monitoring tension in tensioned longitudinally moving elongate e Monitoring tension in tensioned longitudinally moving elongate e

1997-04-21

1999-09-07

Wachsman, Hal Dodge

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Mechanical measurement system

702 43, 702 76, 702142, 73796, G01N 2100

Patent

active

059501421

ABSTRACT:
The tension in an optical fiber being drawn from a preform is monitored by sensing its motion transverse to the drawing direction and analysing the sensed motion using an autoregressive time-series model to provide a power spectrum. One of the peaks of the spectrum is identified as associated with the fundamental natural frequency of the drawn fiber and the frequency of that peak is used in a calculation of the tension of the fiber.

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patent: 5710432 (1998-01-01), Bell
Journal of Lightwave Technology, vol. 9, No. 8, Aug. 1991, New York, US pp. 945-947--Noncontact Measurement of Optical Fiber Draw Tension.

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