A LASER-DOPPLER SYSTEM FOR MEASURING DISTRIBUTIONS OF BLOOD PARTICLESIN NARROW FLOW CHANNELS

Authors
NIJHOF EJ UIJTTEWAAL WSJ HEETHAAR RM
Citation
Ej. Nijhof et al., A LASER-DOPPLER SYSTEM FOR MEASURING DISTRIBUTIONS OF BLOOD PARTICLESIN NARROW FLOW CHANNELS, IEEE transactions on instrumentation and measurement, 43(3), 1994, pp. 430-435
Citations number
13
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
IEEE transactions on instrumentation and measurement → ACNP
ISSN journal
00189456
Volume
43
Issue
3
Year of publication
1994
Pages
430 - 435
Database
ISI
SICI code
0018-9456(1994)43:3<430:ALSFMD>2.0.ZU;2-Y
Abstract
A laser-Doppler velocimeter with microscopic probe volume has been dev eloped in order to measure concentration distributions of particles in flowing suspensions containing, e.g., blood cells or microspheres. Ex periments on flow through simple geometries were performed to demonstr ate the applicability of the apparatus. Velocity profiles could be mea sured with an inaccuracy of about 2% and a spatial resolution of 15 mu m, whereas concentration measurements yielded typical inaccuracies of 7%. The determination of absolute particle concentrations without addi tional calibration was demonstrated to be feasible too.