Optics: measuring and testing – For optical fiber or waveguide inspection
Patent
1985-06-14
1986-12-30
McGraw, Vincent P.
Optics: measuring and testing
For optical fiber or waveguide inspection
356432, G01N 2184, G01N 2188
Patent
active
046325441
ABSTRACT:
Method and apparatus for detecting defects in an optical cable composed of a series of cable units. Light pulses are sent through one cable conductor and returned to the starting end via a second conductor and an electrical signal representative of the light intensity exiting the second conductor is derived. The electrical signal is applied to a sensitivity control circuit which is switched through a succession of sensitivity levels starting from a minimum level and proceeding to a maximum level. Each sensitivity level corresponds to the attenuation produced by a cable composed of a given number of cable units and is associated with a particular ratio between the output signal provided by the sensitivity control circuit and the electrical signal applied thereto. Switching continues until the output signal provided by the sensitivity control circuit exceeds a selected threshold value, and the number of levels through which the sensitivity control circuit has been switched until that output signal has been reached is displayed.
ANT Nachrichtentechnik GmbH
McGraw Vincent P.
LandOfFree
Optical cable testing does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical cable testing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical cable testing will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1544236