Patent ID: 6313909
Filing Date: 2001-11-06
Classification: G01M,G01N

Abstract:
A method for detecting a defect in fibers that includes receiving a scattered light signal generated by a light source in a fiber diameter measurement system, the method comprising the steps of:removing a first and second component of the scattered light signal to generate a modified scattered light signal, wherein the first component corresponds to the fiber diameter measurement system and the second component corresponds to the outer diameter of the fiber; andanalyzing the modified scattered light signal to determine if a defect-related component of the scattered light signal is present, includinggenerating a defect detection threshold which is a function of a reference signal; andcomparing the modified scattered light signal to the detection threshold to determine if the defect-related component is present,the presence of the defect related component being indicative of the presence of a defect in the fiber.