Dynamic calibration technique for the micro-pillar shear-stress sensor MPS3

被引：19

作者：

Grosse, S. ^{[1
]}

Soodt, T. ^{[1
]}

Schroeder, W. ^{[1
]}

机构：

[1] Univ Aachen, Rhein Westfal TH Aachen, Inst Aerodynam, D-5100 Aachen, Germany

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2008年 / 19卷 / 10期

关键词：

MPS3; micro-pillar shear-stress sensor; wall-shear stress; dynamic calibration;

D O I：

10.1088/0957-0233/19/10/105201

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on magnetic excitation a dynamic calibration technique for the micro-pillar shear-stress sensor MPS3, which allows one to determine the local wall-shear stress in turbulent flows by optically measuring the velocity gradient within the viscous sublayer of turbulent flows, is described. The proposed dynamic calibration technique allows one to assess the micro-pillar dynamic response for different flow media up to approximately 10 kHz. The results convincingly agree with the findings of a second-order analytical approximation based on experimentally determined damped eigenfrequencies and damping coefficients. Measurements for different sensor geometries and in various fluids show the sensor to possess transfer functions ranging from a flat low-pass filtered response to strong resonant behavior.

引用

页数：12

共 15 条

[1] Dynamic response of micro-pillar sensors measuring fluctuating wall-shear-stress [J].

Bruecker, Ch ;

Bauer, D. ;

Chaves, H. .

EXPERIMENTS IN FLUIDS, 2007, 42 (05) :737-749

[2] Dynamic calibration technique for thermal shear-stress sensors with mean flow [J].

Chandrasekaran, V ;

Cain, A ;

Nishida, T ;

Cattafesta, LN ;

Sheplak, M .

EXPERIMENTS IN FLUIDS, 2005, 39 (01) :56-65

[3] New developments and applications of skin-friction measuring techniques [J].

Fernholz, HH ;

Janke, G ;

Schober, M ;

Wagner, PM ;

Warnack, D .

MEASUREMENT SCIENCE AND TECHNOLOGY, 1996, 7 (10) :1396-1409

[4] Mean wall-shear stress measurements using the micro-pillar shear-stress sensor MPS3 [J].

Grosse, S. ;

Schroeder, W. .

MEASUREMENT SCIENCE AND TECHNOLOGY, 2008, 19 (01)

[5] Nano-newton drag sensor based on flexible micro-pillars [J].

Grosse, S. ;

Schroeder, W. ;

Bruecker, C. .

MEASUREMENT SCIENCE AND TECHNOLOGY, 2006, 17 (10) :2689-2697

[6] Dynamic wall-shear stress measurements in turbulent pipe flow using the micro-pillar sensor MpS3 [J].

Grosse, Sebastian ;

Schroeder, Wolfgang .

INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW, 2008, 29 (03) :830-840

[7] The influence of a viscous fluid on the vibration dynamics of scanning near-field optical microscopy fiber probes and atomic force microscopy cantilevers [J].

Kirstein, S ;

Mertesdorf, M ;

Schonhoff, M .

JOURNAL OF APPLIED PHYSICS, 1998, 84 (04) :1782-1790

[8]

Löfdahl L, 1999, MEAS SCI TECHNOL, V10, P665, DOI 10.1088/0957-0233/10/8/302

[9] Dynamic response of a cantilever in liquid near a solid wall [J].

Naik, T ;

Longmire, EK ;

Mantell, SC .

SENSORS AND ACTUATORS A-PHYSICAL, 2003, 102 (03) :240-254

[10] Modern developments in shear-stress measurement [J].

Naughton, JW ;

Sheplak, M .

PROGRESS IN AEROSPACE SCIENCES, 2002, 38 (6-7) :515-570

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