Patent ID: 9001334
Filing Date: 2015-04-07
Classification: G01J

Abstract:
1. A dynamic velocity controlled interferometer, comprising: a first plane reflector configured to respectively receive and return a first portioned beam of a source along a first optical path length; a second plane reflector configured to respectively receive and return a second portioned beam of said source along a second optical path length; a moving beam splitter configured with a resilient member directly coupled about the periphery of said moving beam splitter, wherein said moving beam splitter is adapted for receiving a beam of radiation from said source so as to provide said first and said second portioned beams; and wherein said resilient member enables said moving beam splitter to move linearly in a direction toward and away but at a predetermined angle to said configured first and second plane reflectors; a plurality of motors coupled to said moving beam splitter configured to independently drive linear movement and tilting movements about X and Y axes of said moving beamsplitter; and a control system configured to provide a feedback controlled velocity control signal and feedback controlled X and Y tilt control signals, said control system further configured to apply said velocity control signal to said plurality of motors to provide adjustment of the positions of said moving beamsplitter with a desired steady velocity, said control system further configured to apply said X and Y tilt control signals to one or more of said plurality of motors to provide said moving beamsplitter with a desired tilt about said X and Y axes, wherein said adjusted positions of said moving beamsplitter further enables optical path length differences between said first optical path length and said second optical path length that in combination provide an interrogating interferogram of the input source beam radiation at a configured exit of said interferometer.