Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Correlation-based speckle velocimeter with self-mixing interference in a semiconductor laser diode
Autore:
Ozdemir, SK; Ito, S; Shinohara, S; Yoshida, H; Sumi, M;
Indirizzi:
Shizuoka Univ, Hamamatsu, Shizuoka 4328561, Japan Shizuoka Univ HamamatsuShizuoka Japan 4328561 u, Shizuoka 4328561, Japan Chiba Inst Technol, Narashino, Chiba 2750016, Japan Chiba Inst Technol Narashino Chiba Japan 2750016 no, Chiba 2750016, Japan
Titolo Testata:
APPLIED OPTICS
fascicolo: 33, volume: 38, anno: 1999,
pagine: 6859 - 6865
SICI:
0003-6935(19991120)38:33<6859:CSVWSI>2.0.ZU;2-3
Fonte:
ISI
Lingua:
ENG
Soggetto:
DOPPLER-VELOCIMETER; OPTICAL FEEDBACK; DISCRIMINATION; COMPACT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
--discip_EC--
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Ozdemir, SK Shizuoka Univ, 3-5-1 Johoku, Hamamatsu, Shizuoka 4328561, Japan Shizuoka Univ 3-5-1 Johoku Hamamatsu Shizuoka Japan 4328561 an
Citazione:
S.K. Ozdemir et al., "Correlation-based speckle velocimeter with self-mixing interference in a semiconductor laser diode", APPL OPTICS, 38(33), 1999, pp. 6859-6865

Abstract

We propose a novel self-mixing laser diode speckle velocimeter based on autocorrelation. The self-mixing laser diode launches and receives reflected light from a moving surface that has a random reflection profile. Some portion of the scattered light backcouples into the laser cavity and causes random intensity variations in the form of speckle signals. These speckle signals obtained from a self-mixing laser diode are processed by use of autocorrelation. The Linear relation between the velocity and the reciprocal of the correlation time of the speckle intensity fluctuations allows us to determine the velocity easily if proper calibration is performed. The range of the investigated velocity is 20-450 mm/s. For an aluminum target that moves at a velocity of 350 mm/s, the measurement error is less than 2%. (C) 1999 Optical Society of America OCIS codes: 120.7250, 030.6410.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/07/20 alle ore 07:38:46