wind meter Articles

  • Amassing Wind Information

    Wind is a variable resource, but not an indecipherable one. Second Wind encourages harnessing the full range of wind sensing technologies that are available today. When it comes to wind information, much attention is focused on the choice of wind measurement technology and data collection practices in wind resource assessment and project design. Right now, wind data plays a limited role in the ...


  • The Function of an Ultrasonic Flow Meter

    Running a water management operation requires taking a wide range of measurements. In addition to measuring the flow in your system, many systems must measure the water level of their channel, and one of the best tools for accomplishing this goal is an ultrasonic flow meter. ...


    By TRACOM Inc.

  • Does Wind Turbine Blade Length Really Matter?

    Simply put: Longer wind turbine blade length means greater power production. Blades capture the wind which forces the rotation of the rotor; longer blades means more area for the wind to push against, which means greater force and rotational power. However, how much difference does blade length make overall, in comparison to other factors? There is a standard formula that can be used to apply the ...

  • Does Ultrasonic Wind Sensor VENTUS-UMB pass extreme tests?

    Sometimes we give our sensors a hard time. But this has a good cause: We want to guarantee the high quality and the keeping of our promises. A few weeks ago, the ultrasonic wind sensor VENTUS was the one to be challenged. We exposed the modern measurement device to extreme conditions. But did it endure these conditions? And where occurs enough wind to challenge the strong sensor at all? Wind ...

  • Contemporary approach to determination of magnetic induction in wind generator air gap

    Abstract The paper describes a system for measuring of magnetic induction on the wind generating unit. The manner of operation and the application of the Hall effect probe are detailed. Dynamic electromagnetic field computing results are shown through application of MKE on the synchronous generator model installed in a windmill unit and compared to the actual metering results. Two subsequent ...

  • Does Ultrasonic Wind Sensor VENTUS-UMB pass extreme tests?

    Sometimes we give our sensors a hard time. But this has a good cause: We want to guarantee the high quality and the keeping of our promises. A few weeks ago, the ultrasonic wind sensor VENTUS was the one to be challenged. We exposed the modern measurement device to extreme conditions. But did it endure these conditions? And where occurs enough wind to challenge the strong sensor at all? Wind ...

  • Air Flow Meters to Measure Air Velocity and Air Pressure

    Air flow meters are used to measure air velocity and air pressure. Depending on the type of application, air flow meters are made as hot-wire air flow meters or pocket weather flow meters, both of which can measure air velocity and air pressure. The results of measuring the air velocity can be stored in the memory of the device depending on the model. There are even data loggers for air velocity ...


    By PCE Instruments UK Ltd

  • Seeking a data model to match turbine advances

    With turbines becoming more innovative, how can developers collect accurate wind data that is centered around lower heights and limited points of measurement? In order to sustain wind power’s leadership in renewable energy, developers and operators will need to build and manage wind farms that deliver competitive results over the long term. The most important driver of wind farm ...


  • miniSODAR

    The miniSODAR is a high-frequency Doppler sodar system that was designed to measure the atmospheric wind profile from 15 meters to 150/200 meters (data is often available to 250 meters) in 5-meter increments. It operates by generating a short tone burst (30 ms to 100 ms) in the frequency range of 4 kHz to 6 kHz. It monitors the low-level acoustic signal echoed by the atmosphere. The echo is ...

  • Case study - Precipitation measurement in high mountains - Aosta Valley

    Precipitation monitoring in remote areas without infrastructure was thought to be impossible in Aosta Valley, Italy. All the more challenging was the task to install a measuring site on the Peak CIMO Blanche with its height of 3000 meters (just shy of 10,000 feet), located near the famous Matterhorn.  The measuring site needed to withstand the extreme weather conditions that comes with ...


    By The OTT Hydromet Group

  • Case study - Weather data for nautical information system

    In Lemwerder, Germany at the Weser River, wind direction and speed are measured and transferred in 60 second intervals via the OTT netDL 1000.  The data is transmitted, wireless, over a distance of 600 meters to the radar tower in Ritzenbuettel, where it is integrated into the ship traffic network - the Authority for Water and Navigation (WSA), Bremen. The WSA is also responsible for ...


    By The OTT Hydromet Group

  • Update: For period 1 July–30 September 2010

    LEGISLATION PUBLIC BILLS Wind Turbines (Minimum Distances from Residential Premises) Bill [HL] 2010-11 The Bill's First Reading took place on 26 July and marked the start of the Bill's journey through the House of Lords. The Second Reading and the general debate on all aspects of the Bill are yet to be scheduled. The Bill would require a minimum distance be ...


  • Giant seals help protect St. Petersburg from flooding

    St Petersburg is regarded as Russia’s cultural capital. To protect its people and cultural treasures from flooding, a 25-kilometer storm flood barrier is being constructed. An essential part of this structure are 40 meter-wide, seven meter-high seals, from Trelleborg. Last january, St. Petersburg was flooded for the 302nd time in its 303-year history. The water level rose more than two meters ...


  • Little House on the Internet

    When we moved from the island of Manhattan to the small Caribbean island of Bonaire (pop. 15,000), we thought we were going about as far as possible from the hectic life we knew in New York City. But after a couple of years in a pleasant residential neighborhood overlooking the sea, we realized that we had just traded urban America for suburban Caribbean, and that was not quite enough. Thus began ...


    By Solar Energy International

  • Case study - Identifying low-frequency tonal noise in windy and noisy conditions

    Problem A large LNG gas facility (approximately 300m x 150m) producing 300 000 tons of LNG annually is situated in a terminal area with the nearest populated area at a distance of around 1 km. Within the gas production facility, a low-frequency tonal noise at around 500 Hz is generated causing complaints from nearby neighbours. The tone imposes a more stringent noise requirement on the ...


    By Norsonic AS

  • Venting your Sewage Treatment System

    The venting for the BIOROCK Sewage Treatment System is probably the key point of the system. The venting is specific to your site; again, why we emphasize the service of a certified recommended installer to install the BIOROCK Sewage Treatment Plant correctly. BIOROCK Venting Guidelines However, there are some simple tricks to follow in order that the continuous draft of air necessary to ...


    By BIOROCK S.à.r.l

  • Mangroves for coastal defence

    The role of mangroves in protecting our coasts against natural hazards such as storms, tsunamis and coastal erosion has been widely promoted. But the supposed coastal protection services of mangroves have also been subject to debate. The Nature Conservancy and Wetlands International together with the University of Cambridge set out to map the current state of knowledge about the role of mangroves ...


    By Wetlands International

  • Noise Measurement

    Definitions Threshold and criterion levels The threshold level is the A-weighted sound level at which a personal noise dosimeter begins to integrate noise into a measured exposure. For example, if the threshold level on a sound level meter is set at 80 decibels (dB), it will capture and integrate into the computation of dose all noise in the employee's hearing zone that equals or exceeds 80 dB. ...


  • Dispersion modeling— New downwash calculations change the playing field

    For many people, the terms “stack height” and “dispersion model” do not ring a bell. Others grapple with these terms as they can be challenging factors in the process of obtaining an air construction permit. Have you ever constructed a stack at a specific height due to EPA guidelines and regulations surrounding Good Engineering Practice (GEP) as it relates to air ...


    By Trinity Consultants

  • It’s the environment, stupid

    If Harry Truman were running for president today, he’d probably ‘Give ‘em Green,’ rather than ‘Give ‘em Hell.’ Bill Clinton’s campaign slogan would be, ‘It’s the environment, stupid.’ And Herbert Hoover might be promising a solar panel on every roof, rather than a chicken in every pot – and the pot would sit on a smart-metered stove, powered by a plug-in hybrid, eligible for renewable energy ...

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