Self-mixing laser-Doppler velocimetry for blood flowmetry

被引：0
作者：
Scalise, L [1 ]
de Mul, F [1 ]
Steenbergen, W [1 ]
Petoukhova, A [1 ]
机构：
[1] Univ Ancona, Dipartimento Meccanica, Ancona, Italy
来源：
MEDICON 2001: PROCEEDINGS OF THE INTERNATIONAL FEDERATION FOR MEDICAL & BIOLOGICAL ENGINEERING, PTS 1 AND 2 | 2001年
关键词：
self-mixing; laser Doppler velocimetry; blood flowmetry;
D O I：
暂无
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
In the present paper, recent experimental advances obtained with a laser Doppler self-mixing velocimeter are reported. The self-mixing effect in a semiconductor laser is used to realise the velocimeter. The velocity is calculated measuring the frequency peak of the frequency spectrum of the intensity signal generated by the laser diode when modulated by feedback light coming from the moving scattering particles. A special optical fiber version of this velocimeter to be used specifically for intra-arterial blood velocity measurement has been realised and a solution for reducing temperature influence on the semiconductor performances is proposed. The results of the in-vivo tests carried out with the proposed sensor are presented.
引用
收藏
页码：285 / 288
页数：4
相关论文
共 8 条
[1]  
CHURNSIDE JH, 1984, APPL OPTICS, V23, P2079
[2]   BACKSCATTER-MODULATION VELOCIMETRY WITH AN EXTERNAL-CAVITY LASER DIODE [J].
DEGROOT, PJ ;
GALLATIN, GM .
OPTICS LETTERS, 1989, 14 (03) :165-167
[3]  
DEMUL FF, 1996, P SOC PHOTO-OPT INS, V2668, P372
[4]  
Drain L. E., 1980, LASER DOPPLER TECHNI
[5]   SMALL LASER DOPPLER-VELOCIMETER BASED ON THE SELF-MIXING EFFECT IN A DIODE-LASER [J].
JENTINK, HW ;
DEMUL, FFM ;
SUICHIES, HE ;
AARNOUDSE, JG ;
GREVE, J .
APPLIED OPTICS, 1988, 27 (02) :379-385
[6]   LASER DOPPLER-VELOCIMETER BASED ON THE SELF-MIXING EFFECT IN A FIBER-COUPLED SEMICONDUCTOR-LASER - THEORY [J].
KOELINK, MH ;
SLOT, M ;
DEMUL, FFM ;
GREVE, J ;
GRAAFF, R ;
DASSEL, ACM ;
AARNOUDSE, JG .
APPLIED OPTICS, 1992, 31 (18) :3401-3408
[7]   A LASER DOPPLER VELOCIMETER EMPLOYING LASER AS A MIXER-OSCILLATOR [J].
RUDD, MJ .
JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS, 1968, 1 (07) :723-+
[8]   LASER DOPPLER-VELOCIMETER USING THE SELF-MIXING EFFECT OF A SEMICONDUCTOR-LASER DIODE [J].
SHINOHARA, S ;
MOCHIZUKI, A ;
YOSHIDA, H ;
SUMI, M .
APPLIED OPTICS, 1986, 25 (09) :1417-1419
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