Patent ID: 9651450
Date: 2017-05-16
CPC Classifications: G01M

Claim:
1. A method for locating defects in an optical cable, the method comprising: transmitting a first optical signal at a first location of the optical cable, the first optical signal having a first pulse width; sampling optical reflections of the optical cable over a first time range following transmission of the first optical signal to obtain a first set of sample data corresponding to reflections of the first optical signal; selecting a second time range based on the first set of sample data, the second time range being less than the first time range; transmitting a second optical signal at the first location of the optical cable, the second optical signal having a second pulse width less than the first pulse width; sampling optical reflections of the optical cable over the second time range following transmission of the second optical signal to obtain a second set of sample data corresponding to reflections of the second optical signal; and identifying at least one defect location of the optical cable based on the second set of sample data.