Spatial-resolved laser Doppler velocity profile measurement of boundary layer flows

被引：2
|
作者：
Czarske, J
Büttner, L
Razik, T
Müller, H
机构：
[1] Laser Zentrum Hannover EV, Grp Messtech, D-30419 Hannover, Germany
[2] Phys Tech Bundesanstalt, Lab 1 31, D-38119 Braunschweig, Germany
来源：
TECHNISCHES MESSEN | 2003年 / 70卷 / 02期
关键词：
interference fringe system; multi-wavelength-interferometry; position measurements; velocity measurements;
D O I：
10.1524/teme.70.2.59.20101
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A novel laser Doppler velocity profile sensor is presented. A spatial resolution of the velocity of about 1.6 mum is achieved inside the measurement volume. Besides high spatial resolution, the profile sensor offers the advantage that no mechanical scanning is needed to obtain the entire flow velocity distribution over about 5 mm. The velocity profile sensor thus provides a tool for high-resolution measurements of varying velocities of shear flows, e. g. boundary layer flows close to walls.
引用
收藏
页码：59 / 65
页数：7
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