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:
Apr. 10, 2018
Filed:
Dec. 05, 2016
United Technologies Corporation, Farmington, CT (US);
Sameh Dardona, South Windsor, CT (US);
Paul Sheedy, Bolton, CT (US);
Marcin Piech, East Hampton, CT (US);
Daniel Anthony Grande, West Hartford, CT (US);
Wayde R. Schmidt, Pomfret Center, CT (US);
Cagatay Tokgoz, Beaumont, TX (US);
Thomas D. Kasprow, Glastonbury, CT (US);
Lesia V. Protsailo, Bolton, CT (US);
United Technologies Corporation, Farmington, CT (US);
Abstract
A wear monitoring system for measuring incursion depth into an abradable coating includes a layer of abradable coating including a depth. At least one measurement circuit includes a plurality of conductive leads disposed within the abradable coating. The conductive leads are spaced radially apart within a common radial plane corresponding to the depth of the abradable coating. A plurality of resistor elements corresponds with the plurality of conductive leads. Each of the plurality of resistor elements are in electrical communication with one of the plurality of conductive leads disposed within the common radial plane of the corresponding one of the plurality of conductive leads. An electrical characteristic of the circuit varies responsive to cutting of one or more of the plurality of conductive leads by a passing airfoil. A gas turbine engine and method are also disclosed.