Determination of the Wind Speed and Direction by Means of Fluidic-Domain Signal Processing

This paper presents an analytical model for a recently introduced class of 2-D directional anemometers based on fluidic structures capable of averaging the differential pressure developed by the wind across distinct diameters of the transverse cross-section of a single cylinder. In previous works, it was found that performing the average over a proper set of diameters produces a differential pressure that depends on the wind direction according to a cosine law, allowing simple direction estimation. This fact, which was not investigated in previous articles, is explained in this paper taking into account symmetry and angular spectral properties of the pressure distribution. Besides analyzing previously proposed devices, this paper introduces several new configurations, which are classified according to the type of average and number of diameters involved. Comparison of the estimated performances with the experimental results obtained in earlier works clearly shows that prototypes proposed so far were far from achieving the best theoretical accuracy, suggesting that significant improvements can be obtained by re-design of the fluidic structures.

[1]  Timothy L. Crawford,et al.  A Pressure-Sphere Anemometer for Measuring Turbulence and Fluxes in Hurricanes , 2007 .

[2]  Benedetto Allotta,et al.  Design and calibration of an innovative ultrasonic, arduino based anemometer , 2017, 2017 IEEE International Conference on Environment and Electrical Engineering and 2017 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe).

[3]  Thor I. Fossen,et al.  On estimation of wind velocity, angle-of-attack and sideslip angle of small UAVs using standard sensors , 2015, 2015 International Conference on Unmanned Aircraft Systems (ICUAS).

[4]  D. Telionis,et al.  Recent Developments in Multi-Hole Probe (MHP) Technology , 2009 .

[5]  Massimo Piotto,et al.  Fabrication and characterization of a directional anemometer based on a single chip MEMS flow sensor , 2011 .

[6]  James L. Amick,et al.  A stationary cylindrical wind speed and direction sensor for use in model testing , 1967 .

[7]  P. Bruschi,et al.  A Low-Power 2-D Wind Sensor Based on Integrated Flow Meters , 2009, IEEE Sensors Journal.

[8]  Sekwang Park,et al.  Two-dimensional ultrasonic anemometer using the directivity angle of an ultrasonic sensor , 2008, Microelectron. J..

[9]  David F. Fletcher,et al.  Cobra probe measurements of mean velocities, Reynolds stresses and higher-order velocity correlations in pipe flow , 2000 .

[10]  O. Paul,et al.  Single-chip CMOS anemometer , 1997, International Electron Devices Meeting. IEDM Technical Digest.

[11]  D. W. Bryer,et al.  Pressure-probe methods for determining wind speed and flow direction , 1971 .

[12]  Nicholas Roy,et al.  Wind Speed and Direction Detection by Means of Solid-state Anemometers Embedded on Small Quadcopters , 2016 .

[13]  Santiago Silvestre,et al.  Spherical Wind Sensor for the Atmosphere of Mars , 2016, IEEE Sensors Journal.

[14]  Mikio Umeda,et al.  Localization of CO2 source by a hexapod robot equipped with an anemoscope and a gas sensor , 2008 .

[15]  Ic Shepherd.  Mean Flow Measurements in Three Dimensions Using a Four Hole Pressure Probe , 1980 .

[16]  Ming Qin,et al.  2-D Micromachined Thermal Wind Sensors—A Review , 2014, IEEE Internet of Things Journal.

[17]  D. Birch,et al.  Calibration and Use of n-Hole Velocity Probes , 2015 .

[18]  Demos P. Georgiou,et al.  Fabrication and calibration of a sub-miniature 5-hole probe with embedded pressure sensors for use in extremely confined and complex flow areas in turbomachinery research facilities , 2014 .

[19]  A M Judd.  Calibration of a five tube probe for measuring wind speed and direction , 1975 .

[20]  C. Liu,et al.  A directional cylindrical anemometer with four sets of differential pressure sensors. , 2016, The Review of scientific instruments.

[21]  Tarik Bourouina,et al.  Modeling micropumps with electrical equivalent networks , 1996 .

[22]  Kofi A. A. Makinwa,et al.  A wind-sensor interface using thermal sigma delta modulation techniques , 2001 .

[23]  Boussad Idjeri,et al.  Wind Measurement Based on MEMS Micro-Anemometer With High Accuracy Using ANN Technique , 2017, IEEE Sensors Journal.

[24]  W. Oost.  The Pressure Anemometer—an Instrument for Adverse Circumstances , 1983 .

[25]  Matteo Corno,et al.  Data-Driven Online Speed Optimization in Autonomous Sailboats , 2016, IEEE Transactions on Intelligent Transportation Systems.

[26]  Eduard Clotet,et al.  First characterization results obtained in a wind tunnel designed for indoor gas source detection , 2015, 2015 International Conference on Advanced Robotics (ICAR).