Invention Grant
- Patent Title: Embedded wireless and passive sensor
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Application No.: US16205490Application Date: 2018-11-30
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Publication No.: US11002637B2Publication Date: 2021-05-11
- Inventor: Sameh Dardona
- Applicant: United Technologies Corporation
- Applicant Address: US CT Farmington
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: G01M15/14
- IPC: G01M15/14

Abstract:
A wear monitoring system for measuring incursion depth into an abradable coating includes a layer of abradable coating including a depth, and a measurement circuit including 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 radio frequency identification tag (RFID) is disposed within the abradable coating and connected to the measurement circuit. A plurality of resistor elements corresponds with the plurality of conductive leads. Each of the plurality of resistor elements in electrical communication with one of the plurality of conductive leads is disposed within the common radial plane of the corresponding one of the plurality of conductive leads. An electrical characteristic of the measurement circuit varies responsive to cutting of one or more of the plurality of conductive leads by a passing airfoil.
Public/Granted literature
- US20200173884A1 EMBEDDED WIRELESS AND PASSIVE SENSOR Public/Granted day:2020-06-04
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