The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 05, 1976
Filed:
Dec. 03, 1975
James C Fletcher, , US;
James W Bilbro, Huntsville, AL (US);
Werner K Dahm, Huntsville, AL (US);
Ronald B Campbell, Jr, Sudbury, MA (US);
Robert M Huffaker, Huntsville, AL (US);
Harold B Jeffreys, Decatur, AL (US);
Albert V Jelalian, Bedford, MA (US);
Wayne H Keene, Medfield, MA (US);
Michael C Krause, Huntsville, AL (US);
Thomas R Lawrence, Huntsville, AL (US);
Charles M Sonnenschein, Natick, MA (US);
David J Wilson, Huntsville, AL (US);
James A Thomson, Berkeley, CA (US);
Other;
Abstract
A system for remotely measuring velocities present in discrete volumes of air in which a CO.sub.2 laser beam is focused by a telescope at such a volume, a focal volume, and within the focusable range, near field, of the telescope. The back scatter, or reflected light, principally from the focal volume, passes back through the telescope and is frequency compared with the original frequency of the laser, and the difference frequency or frequencies represent particle velocities in that focal volume.