Patent ID: 8798467
Filing Date: 2014-08-05
Classification: G01M,H04B

Abstract:
1. An apparatus comprising: an optical signal source configured to generate an optical signal; an optical signal detector system configured to detect the optical signal; a switching system configured to direct the optical signal from the optical signal source to inputs in an optical coupler and direct the optical signal from outputs in the optical coupler to the optical signal detector system; and a controller configured to automatically control the switching system to select the inputs in the optical coupler for transmission of the optical signal into the optical coupler, select the outputs in the optical coupler for measuring the optical signal output from the optical coupler, and measure the optical signal from the outputs selected to form measurements, wherein the switching system is configured to direct current to a light emitting diode associated with a selected output in the outputs connected to an input in the inputs in the optical coupler, the light emitting diode transmits the optical signal to the input in the inputs in the optical coupler, and the optical signal detector system receives the optical signal from the outputs in the optical coupler.