Look-ahead windshear detector by filtered Rayleigh and/or aeroso

Optics: measuring and testing – By particle light scattering – With photocell detection

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356350, 372 94, 372109, G01B 902

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active

053942388

ABSTRACT:
Windshear detector using Rayleigh-backscattered light and a molecular filter for optical discrimination, and frequency locking of a laser, to detect windshear. The windshear detector has a pulsed ring laser that transmits a signal out of the detector and receives reflected backscatter of the transmitted signal. The ring laser is driven with an injection laser. Both lasers are ultimately keyed to the molecular transmission or absorption filter with locking electronics. The received reflected backscatter is detected and processed into a signal that indicates whether there is windshear or turbulence.

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