Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
System for measuring velocity field of fluid flow utilizing a laser-doppler spectral image converter










Image Number 4 for United States Patent #4919536.

A flow field seeded with small particles is illuminated by collimated, monochromatic laser light sheet 16. Doppler shifted scattering from particle motion is imaged by an optical system 22. An optical frequency-to-intensity converter 24 is located at the image plane such that the transmitted image contains a simultaneous two-dimensional measurement of flow velocity along a direction determined by a laser beam and observer (converter) direction. These images can be observed directly or through a TV-2-D array camera and monitor or processed through a computer system 28.








 
 
  Recently Added Patents
Biometric data display system and method
Cap
Horizontal card holder
Structure of circuit board and method for fabricating the same
Fluorine-free fused ring heteroaromatic photoacid generators and resist compositions containing the same
Automatic fixup of network configuration on system image move
Vehicle and communication monitoring
  Randomly Featured Patents
Method of fabricating a semiconductor device having gate finger elements extended over a plurality of isolation regions formed in the source and drain regions
All-solid-state reflection-controllable electrochromic device and optical switchable component using it
Event localization and fall-off correction by distance-dependent weighting
Switch current sensing with snubber current suppression in a push-pull converter
Flexible safety screen
High solids paint composition comprising hydroxy functional oligoesters and hydroxy functional copolymers
Reusable pop-up container and associated container blank
Detergent composition containing di-long chain alkyl amine oxides
Switch device for starter of internal combustion engine
Spread illumination apparatus