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Titolo:
A LASER DISPLACEMENT SENSOR USING THE SELF-MIXING EFFECT FOR MODAL-ANALYSIS AND DEFECT DETECTION
Autore:
SERVAGENT N; BOSCH T; LESCURE M;
Indirizzi:
ECOLE MINES,DEPT AUTOMAT & PROD NANTES 3 FRANCE ENSEEIHT F-31071 TOULOUSE FRANCE
Titolo Testata:
IEEE transactions on instrumentation and measurement
fascicolo: 4, volume: 46, anno: 1997,
pagine: 847 - 850
SICI:
0018-9456(1997)46:4<847:ALDSUT>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
DIODE-LASER; INTERFERENCE;
Keywords:
DISPLACEMENT SENSOR; LASER DIODE; MODAL ANALYSIS; OPTICAL FEEDBACK; SELF-MIXING EFFECT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
9
Recensione:
Indirizzi per estratti:
Citazione:
N. Servagent et al., "A LASER DISPLACEMENT SENSOR USING THE SELF-MIXING EFFECT FOR MODAL-ANALYSIS AND DEFECT DETECTION", IEEE transactions on instrumentation and measurement, 46(4), 1997, pp. 847-850

Abstract

A low-cost, simple, noncontact displacement sensor using the self-mixing effect inside a cw single-mode laser diode has been developed for modal analysis and defect detection, The resonance frequencies of thinclamped metallic plates have been determined with a resolution of 0.2Hz, With such targets, classic spectrum analyzers generate a measurement error up to 10% because of the weight of the accelerometer, The frequency-shift of the fundamental resonance frequency between a standard plate and the same one with a known defect can also be measured, themodal vector associated to this frequency being distorted at the place of the defect.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 22:04:13