Invention Grant
- Patent Title: Structural health monitoring system employing electromechanical impedance technology
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Application No.: US14107576Application Date: 2013-12-16
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Publication No.: US09664649B2Publication Date: 2017-05-30
- Inventor: Carlos Alberto Gallo , Domingos Alves Rade , Elias Bitencourt Teodoro , Luiz Gustavo Martins , Marcos Morais de Souza , Roberto Mendes Finzi Neto , Valder Steffen, Jr. , Camila Gianini Gonsalez , Glauco Humberto Gomes , Fernando Dotta , Mauricio Hartmann , Paulo Anchieta da Silva , Ricardo Pinheiro Rulli
- Applicant: Embraer S.A. , Universidade Federal de Uberlândia
- Applicant Address: BR São José dos Campos BR Uberlândia
- Assignee: Embraer S.A.,Universidade Federal de Uberlândia
- Current Assignee: Embraer S.A.,Universidade Federal de Uberlândia
- Current Assignee Address: BR São José dos Campos BR Uberlândia
- Agency: Nixon & Vanderhye P.C.
- Main IPC: G01B5/28
- IPC: G01B5/28 ; G01B5/30 ; G01N29/09 ; G01M17/007 ; G01N29/44 ; G01N29/32

Abstract:
A method to acquire the structural health state of an aircraft mechanical component performs measurements at each frequency point of interest by using a network of transducers and working each one simultaneously as actuator and sensor. Each transducer is individually excited by a sinusoidal, constant frequency and arbitrary amplitude, voltage waveform for each arbitrary frequency point used to interrogate the structure. A dedicated hardware executes an analogical (analog) quantization to measure electrical current and average electrical power consumed by each transducer. With these two variables, the electromechanical signature of the structure is obtained at different areas of the monitored structure.
Public/Granted literature
- US20150168353A1 STRUCTURAL HEALTH MONITORING SYSTEM EMPLOYING ELECTROMECHANICAL IMPEDANCE TECHNOLOGY Public/Granted day:2015-06-18
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