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:
Dec. 13, 2016
Filed:
May. 07, 2013
Snecma, Paris, FR;
Andre Leroux, Samois sur Seine, FR;
Serge Del Arco, Hericy, FR;
Olivier Follerot, Paris, FR;
Michel Herbault, Le Mee Sur Seine, FR;
Philippe Armand Hugbart, Suvry Courtry, FR;
Fabien Pouchard, Brunoy, FR;
Etienne Tulie, Soisy sur Seine, FR;
SNECMA, Paris, FR;
Abstract
A device for measuring vibration amplitudes of the blade tips in a turbomachine is provided. The device includes a support mounted in an orifice of a casing of a turbomachine, in which are housed two optical guides for the emission and reception of a light signal exiting inside the casing across from the tips of the blades of a turbine wheel Each optical guide includes an optical fiber connected by a mechanical connector to a needle of which the core is made of a material able to transmit a light signal and which is resistant to temperatures less than or equal to 1100° C. and which exits at its distal end in the casing across from the blade tips.