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. 08, 2013
Filed:
Jan. 10, 2012
Daniel Kominsky, Christiansburg, VA (US);
Daniel Kominsky, Christiansburg, VA (US);
Prime Photonics, LC, Blacksburg, VA (US);
Abstract
The sensor comprises a beam of electromagnetic radiation projecting across a gap between the stationary member and the translating member, a reference detector having a reference FOV and a signal detector having a signal FOV. The sensor is to be mounted on the stationary member. The electromagnetic radiation beam, the reference FOV and the signal FOV intersect in a volume including the gap, and the gap is calculated from the reflected electromagnetic radiation received by the reference and signal detectors. The gap can be determined from a ratio between a rise time in the signal pulse and a rise time in the reference pulse, or a ratio between a fall time in the signal pulse and a fall time in the reference pulse, or a ratio between a delay time in the signal pulse and a delay time in the reference pulse, among other features.