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:
Aug. 28, 2018
Filed:
May. 04, 2016
Alan B Cain, Chesterfield, MO (US);
Stanislav Gordeyev, Notre Dame, IN (US);
R. Mark Rennie, Notre Dame, IN (US);
Alan B Cain, Chesterfield, MO (US);
Stanislav Gordeyev, Notre Dame, IN (US);
R. Mark Rennie, Notre Dame, IN (US);
Other;
Abstract
An 'air-data probe' system measures at least one component of freestream velocity by tracking the motion of a laser-induced breakdown ('LIB') spark created in a freestream flow. Neutral density filters are positioned or deployed so that the brightness of the initial LIB spark doesn't over saturate the LIB sensor system. This allows for more consistent tracking of the LIB spark throughout the duration of the LIB spark, including the later stages where the LIB spark is not nearly as bright as the initial LIB spark, thereby allowing all or substantially all of the light generated by the LIB spark to reach the sensors. This provides for enhanced visibility and more accurate detection of the LIB spark over time and as air density changes.