Methods, Systems And/or Apparatus Relating To Turbine Blade Monitoring

By using RFID tags and readers on the rotor blades of turbine engines, combined with sensor data, the problem of inability to accurately monitor the health of the blades in the existing technology is solved, enabling efficient and reliable blade diagnosis and fault prediction during operation. .

Inactive Publication Date: 2015-06-24
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such inspections do not provide information on the stresses induced during work, likewise tend to be unreliable, and are very costly due to both the amount of labor required and the need to shut down the engine

Method used

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Examples

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Embodiment Construction

[0040] Radio Frequency Identification ("RFID") tags are a well-known identification method in several fields. Specifically, a reader of a conventional RFID system generates and transmits an electromagnetic interrogation field of a specific frequency when activated by an attached electronic drive circuit. An RFID tag or device typically includes a semiconductor chip with RF circuitry, logic circuitry, and memory, as well as an antenna. The device functions in response to an encoded radio frequency (RF) signal. If the device is within the interrogation field for sufficient time, the RFID inlay will become actuated and transmit a uniquely encoded signal that is received by the reader or a separate receiving antenna. The RF carrier signal is demodulated to recover the information stored in the RFID device. Various RFID structures, circuits and programming protocols are known in the art. Some examples are described in US Patent No. 5,682,143 (Brady et al.) and US Patent No. 5,44...

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PUM

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Abstract

A method of monitoring a rotor blade 120, 126 of a turbine engine that includes a plurality of blades 120, 126 mounted to a rotor shaft, comprising: a) securing a RFID tag 160 that includes an antenna 162 to at least one of the rotor blades 120, 126; b) securing a RFID reader 166 on a stationary surface on the turbine engine in operational proximity to the RFID tag 160; and c) during operation of the turbine engine, monitoring the RFID tag 160 with the RFID reader 166.

Description

[0001] This application is a divisional application of a patent application submitted on March 1, 2010 (Chinese national application number is 201010143668.3, and the title of the invention is "METHODS, SYSTEMS AND / OR APPARATUS RELATING TO TURBINE BLADE..."). technical field [0002] This application generally relates to methods, systems and / or apparatus for improving the efficiency and / or operation of turbine engines, as used herein unless expressly stated otherwise, is intended to include all types of turbine or rotary engines, including Gas turbine engine, aero engine, steam turbine engine, etc. More specifically, but not by way of limitation, the present application relates to methods, systems, and / or apparatus for improving turbine blade diagnostics, including the use of RFID technology to transmit status information that may be used in diagnostic applications. Background technique [0003] A gas turbine engine typically includes a compressor, combustor, and turbine. C...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F04D29/30F01D5/12F01D21/00G06K7/00
CPCF01D5/12F01D21/003F04D27/001F04D29/324G06K7/00F01D17/02F01D21/04F01D21/10F01D21/14G01N29/14G01N2291/2693G06K19/07749F05D2220/31F05D2260/80
OwnerGENERAL ELECTRIC CO