NASA Technical Reports Server (NTRS) : Optical pdf

NASA Technical Reports Server (NTRS) : Optical

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Description of the Book:

An optical scanner that sequentially focuses optical energy (light) at selected points in space is described. The essential component is a scanning wheel including several glass windows with each window having a different thickness. Due to this difference in thickness, the displacement of the emerging light from the incident light is different for each window. The scanner transmits optical energy to a point in space while at the same time receiving any optical energy generated at that point and then moves on to the next selected point and repeats this transmit and receive operation. It fills the need for a system that permits a laser velocimeter to rapidly scan across a constantly changing flow field in an aerodynamic test facility

• Creator/s: NASA Technical Reports Server (NTRS
• Date: 12/20/1977
• Year: 1977
• Book Topics/Themes: NASA Technical Reports Server (NTRS), LASER DOPPLER VELOCIMETERS, LASER WINDOWS, OPTICAL SCANNERS, BACKSCATTERING, LIGHT (VISIBLE RADIATION), TEST EQUIPMENT, Rhodes, D. B. [Inventor

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