Time of flight micro flow sensor for aqueous fluids using in-situ produced tracer

被引:0
作者
Wu, J [1 ]
Sansen, W [1 ]
机构
[1] Katholieke Univ Leuven, ESAT, MICAS, B-3001 Louvain, Belgium
来源
TRANSDUCERS '01: EUROSENSORS XV, DIGEST OF TECHNICAL PAPERS, VOLS 1 AND 2 | 2001年
关键词
flow sensor; time of flight; oxygen;
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 this paper we propose a time of flight micro flow sensor for aqueous fluids using an in-situ electrochemically produced tracer. The sensor consists of two electrochemical cells integrated in the flow channel. The upstream cell functions as an oxygen producer and the downstream cell is an amperometric oxygen sensor. Oxygen is produced at the upstream cell and detected at the downstream cell. Since the geometry setup of the flow channel is known, the flow rate is derived from the time difference between the signals. There is no need of delicate microstructures in the sensor. The measurement results are accurate and stable in virtue of its working mechanism.
引用
收藏
页码:1444 / 1447
页数:4
相关论文
共 8 条
[1]   NUMERICAL-SIMULATION OF CONVECTIVE DIFFUSION AT A RECTANGULAR CHANNEL FLOW ELECTRODE [J].
ANDERSON, JL ;
MOLDOVEANU, S .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1984, 179 (1-2) :107-117
[2]   Thermal flow sensor for liquids and gases based on combinations of two principles [J].
Ashauer, M ;
Glosch, H ;
Hedrich, F ;
Hey, N ;
Sandmaier, H ;
Lang, W .
SENSORS AND ACTUATORS A-PHYSICAL, 1999, 73 (1-2) :7-13
[3]   MASS-TRANSPORT IN CHANNEL ELECTRODES - THE APPLICATION OF THE BACKWARDS IMPLICIT METHOD TO ELECTRODE-REACTIONS (EC, ECE AND DISP) INVOLVING COUPLED HOMOGENEOUS KINETICS [J].
COMPTON, RG ;
PILKINGTON, MBG ;
STEARN, GM .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1988, 84 :2155-2171
[4]  
Fuhr G., 1992, Proceedings. IEEE Micro Electro Mechanical Systems. An Investigation of Micro Structures, Sensors, Actuators, Machines and Robots(Cat. No.92CH3093-2), P25, DOI 10.1109/MEMSYS.1992.187685
[5]   Microfluidics - a review [J].
Gravesen, Peter ;
Branebjerg, Jens ;
Jensen, Ole Sondergard .
Journal of Micromechanics and Microengineering, 1993, 3 (04) :168-182
[6]  
LAMBRECHTS M, 1992, BIOSENSORS MICROELEC, P55
[7]  
SANSEN W, 1992, P BIOSENSORS GENEVA, P156
[8]   MONOLITHIC FLOW SENSOR FOR MEASURING MILLILITER PER MINUTE LIQUID FLOW [J].
YANG, CQ ;
SOEBERG, H .
SENSORS AND ACTUATORS A-PHYSICAL, 1992, 33 (03) :143-153