wind speed instrument Articles

  • ´More Stations. More Data. Better Forecasts.´ – the NYS Mesonet

    “More Stations. More Data. Better Forecasts.” – that’s the slogan of New York State Mesonet. The weather observation network consists of a total of 125 weather stations all over the state of New York and Lufft was selected as one of the vendors to support them in capturing the data. All 125 of the weathers stations have the standard instrumentation suite. Of those 125, 17 ...

  • The advantage of speed for damper drive applications - Case Study

    Overview There certainly is no substitute for speed. In nature, on the athletic field or on the computer, superior speed makes all the difference. Pneumatic-powered damper drives are excellent choices for speed sensitive installations. There are no motor windings or gear sets that can compete on pure speed applications the way a quick acting pnuematic drive can react. For combustion air and ...


    By Rotork

  • Gill Instruments case study featured in AWE International

    AWE International magazine, which is focused on the environmental analysis industry, recently featured Gill Instruments in a case study about environmental monitoring with solid-state meteorological instruments. The case study includes information about all of the products within the Gill Instruments range, with information about their advantages within the environmental analysis field. We have ...


    By Gill Instruments Limited

  • Intrinsically safe ultrasonic wind sensor

    The Gill Instruments Intrinsically Safe WindObserver™ is an ultrasonic wind sensor, developed specifically for use in hazardous areas and in particular for offshore applications. The sensor has no moving parts, utilising Gill Instruments’ advanced ultrasonic measurement technology to accurately monitor wind speed and direction. Approved to EEx ia IIC T5, this ultrasonic wind sensor is a ...


    By Gill Instruments Limited

  • How much wind is needed to power a home turbine?

    First do you have what it takes? Whether you are considering a small rooftop unit or a large residential turbine you need to know how much wind power is in your area. Wind resource maps, published by the US Department of Energy show airflow speeds at 50 meters (150 feet) above the ground and are a great resource in deciding if you are in a viable location. That's great if you are installing a ...


    By Bosworth Instrument

  • Measurements of wind-induced loss of solid precipitation: description of a Norwegian field study

    Precipitation measurements have a well-documented and mostly wind-dependent bias which is especially apparent during solid precipitation events. The resulting inaccuracy in precipitation data remains an area of concern in quantifying regional and global climate trends. As a high-latitude country, Norway has many solid precipitation events often accompanied by high wind speeds where the current ...


    By IWA Publishing

  • Sonic Thermometry

    Sonic anemometers have had extensive use in the scientific community. These instruments are used to measure atmospheric parameters that most rotating instruments cannot. Wind speed and wind direction or individual axes of wind velocity are most commonly measured. Along with these measurements, another parameter can be extracted from the sonic anemometer (i.e.), sonic temperature. Since the ...

  • Gill WindSonic used on robotic mower case study

    Gill WindSonic ultrasonic wind sensor provides wind speed and direction data for positioning system on robotic mower. Since its launch in 2002 the Gill WindSonic ultrasonic wind sensor has been used in a wide range of applications and has recently been selected by Precise Path Robotics, Inc. based in Indianapolis, IN USA to form an essential part of the positioning system on the RG3, a ...


    By Gill Instruments Limited

  • Field Evaluation of a Method for Estimating Gaseous Fluxes from Area Sources Using Open-Path Fourier Transform Infrared

    This paper describes results from the first field experiment designed to evaluate a new approach for quantifying gaseous fugitive emissions of area air pollution sources. The approach combines path-integrated concentration data acquired with any path-integrated optical remote sensing (PI-ORS) technique and computed tomography (CT) technique. In this study, an ...


    By Arcadis

  • Parametric study of the dispersion aspects in a street-canyon area

    Most modern cities practically consist of street canyons, making monitoring of the level of their pollution an important issue. In this study, a Computational Fluid Dynamics (CFD) simulation of pollutant dispersion was performed for a real, complex-geometry street canyon for various wind directions and speeds. Typical street-canyon effects – like the formation of a longitudinal vortex for wind ...


    By Inderscience Publishers

  • A study of radiation shield effectiveness

    A brief comparison of temperature readings in two passively-ventilated and three fan-aspirated radiation shields under conditions of low wind and relatively high insolation is presented. From each of two periods of study, two days were chosen for conditions of high insolation and low wind to illustrate a reasonable sample of the performance of the shields. A single sample of each shield was used ...


    By Davis Instruments Corp.

  • ADMS 5 Buildings & Complex Terrain Validation Martins Creek Steam Electric Station

    1 Introduction The Martins Creek Steam Electric Station1 [1] is located in a rural area along the Delaware River on the Pennsylvania/New Jersey border, approximately 30 km north-east of Allentown, PA and 95 km north of Philadelphia, PA. The area can be characterised by complex terrain rising above the stacks. Sources included multiple tall stacks ranging from 122 to 183 ...

  • Baseline data in air quality impact studies

    The main objective of this paper is to explain not only the importance of the baseline data in air quality studies but also the general procedures and steps involved in the baseline data collection. Special considerations on the instruments and measurements for a perfect baseline data collection are also emphasized in this paper. As an example, an adequate baseline data collection procedure which ...


    By Inderscience Publishers

  • 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

  • Sonic temperature significance and limitations

    The ATI sonic thermometer measures temperature from transit times t1 and t2 measured along the vertical path of the anemometer's probe. They are the times taken by sound pulses to traverse the 15-cm acoustic path in opposite directions; (these same transit times are used also for computing the vertical wind component). The instrument exploits the strong dependence that exists between the speed ...

  • Using Lidar for WRA Campaigns: Your Questions Answered (Part I)

    In the course of conversations with wind developers new to Lidar technology, a number of questions seem to come up regularly. In this and future blog posts, I will attempt to answer these questions in some detail to benefit others who might be pondering them as well. Two very practical questions have to do with how WINDCUBE® ...


    By Renewable NRG Systems

  • ADMS 5 Complex Terrain Validation Tracy Power Plant

    1 Introduction The Tracy Power Plant is situated 27 km east of Reno. Nevada, in a region of complex terrain. The power plant is in a valley surrounded by peaks rising to around 950 m above the power plant elevation. During 1984. the United States Environmental Protection Agency carried out a series of 14 experiments between August 6th and 27th. for a total of 128 ...

  • Former Ordnance Survey – Case Study

    Project Highlights Envirochem carried out environmental perimeter monitoring during the demolition of the former Ordnance survey site in Southampton. Airborne Dust, noise and vibration levels were all monitored using state of the art equipment. Project Description ...

  • Online flow measurement

    Background The undershoot weir in Hohensaaten was built in 1913. It has three openings and regulates the discharge from the Oderbruch and from the Finow canal into the Hohensaaten-Friedrichsthaler-waterway. Moreover, it protects parts of the Oderbruch against Oder floods. The weir controls the waterlevels in the Havel-Oder-waterway and in the reach of Niederfinow- Hohensaaten. ...

  • ADMS 5 Buildings Validation AGA Experiments

    The American Gas Association (AGA) experiments1 [1] occurred during spring and summer 1980 at gas compressor stations in Texas and Kansas. At each test facility, one of the gas compressor stacks was retrofitted to accommodate SF6 tracer gas emissions. In addition, stack height extensions were provided for some of the experiments (with the normal stack height close to 10 m). The stack ...

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