Application of Bragg grating sensors in the characterization of scaled marine vehicle models.
Appl Opt
; 36(1): 328-36, 1997 Jan 01.
Article
em En
| MEDLINE
| ID: mdl-18250678
ABSTRACT
Experiments using two different fiber-optic Bragg grating strain sensor systems to measure dynamic loads, slamming forces, and bending moments on a scaled catamaran model are reported. The system designed to measure slamming forces is based on dynamic locking of the laser diode wavelength to the peak wavelength of a Bragg grating mounted in a force cell. The sensor system has a dynamic range of 27 dB (1-550 N) and a bandwidth in excess of 1 kHz. For the measurement of bending moments, a time-domain multiplexing system, which used a unique pulsed rf modulation technique, of two Bragg grating sensors mounted on a steel beam was designed. The dynamic range of this system was also 27 dB [17 Nm (Newton meter) with a 0.03-Nm resolution]. The bandwidth was limited to approximately 50 Hz.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Appl Opt
Ano de publicação:
1997
Tipo de documento:
Article