Wind Monitoring Articles

  • Wind measurement with high speed train operations, China - Case Study

    The compact weather stations WS500-UMB and WS600-UMB from Lufft provides reliable wind measurements along high speed rail lines in China. As the trains travel at speeds of up to 400 km/h, wind speed-dependent control of train speeds is essential. For this purpose, wind measurement stations like the WS500-UMB and WS600-UMB are installed at 5 km intervals along the track. Measurement data are ...

  • VENTUS-X-UMB field test in Norway - Case Study

    In a project, launched in January 2016, the Norwegian airport systems integrator Avinor has tested a new VENTUS-UMB model with an enhanced heating power. Two of the new models have run in the field, installed at the most extreme sites in Norway, where they are delivering wind data reliably ever since their installation. One is placed at the top of Kjølen mountain, close to Tromsø ...

  • Installation of 73 Ice Warning Stations (RWIS) in the Czech Republic - Case Study

    In the Czech Republic we installed with our general partner ChanGroup s.r.o. 73 ice warning systems. The systems usually consist of our ultrasonic wind sensor Ventus-UMB, the radar rain-sensors R2S-UMB, color cameras as well as one active and one passive road sensor (IRS31-UMB and ARS31-UMB). At a few stations you can also find our "all-in-one" weather stations from the WS-family. The pictures ...

  • Wind energy in Norway - Icing of wind sensors? Not with the ultrasonic wind sensor VENTUS! - Case Study

    Renewable energy in Norway is getting more and more important! The government has spent the goal that the use of renewable energy should increase strongly over the next years. Wind power plays a major role in this endeavor. Norway is climatically and topographically one of the most interesting locations for wind energy in Europe - but it is barely tapped by now. Our customer, the power company ...

  • What are the advantages of ultrasonic wind sensors?

    Whether mechanical, ultrasonic or laser wind measurements: All measuring methods have technical limits. While for mechanical wind sensors the measuring element – cups and vanes – itself predominantly produces a disturbance in the flow field, for ultrasonic anemometers a disturbance can be caused by the sensor holder or housing construction. Only optical methods, e.g. LDA (Laser ...

  • 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 OTT HydroMet

  • The top 3 Lufft blog posts of 2016

    At the start of the New Year we would like to take a look at the blog highlights of the last year: On a Personal Note After the acquisition of Lufft by a new owner in December 2015, our former Managing Director Klaus Hirzel announced the first major change for Lufft last year: The change of management. On 1st of August Klaus Hirzel handed over the reins to Dr. Martin ...

  • 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 NRG Systems

  • 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 ...

  • 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 ...

  • How to Keep Your SymphoniePRO Data Secure

    Data matters. The accuracy, consistency, and yes, safety of measurement data keep many wind developers and analysts up at night. Customers often ask about the digital and physical security of RNRG instruments, so I sat down with Michael Fisher, product manager for our wind resource assessment (WRA) line, to get answers to the most common questions. Q: Why is data security important? ...


    By NRG Systems

  • Smart PV Monitoring with smart Weather Stations

    Goodbye Cable Clutter, Hello All-In-One Weather Sensors: Lufft is proof of the fact that professional measurement technology does not always have to be complicated. With our experience in weather sensor manufacturing we are the first to offer modular, all-in-one weather sensors for the solar energy industry that require only a single cable connection. Everything you need for solar monitoring is ...

  • Unexpected Benefits of RNRG’s Global Reach

    It always amazes me when I think about how this small company in Vermont, U.S.A., has been supplying products to over 160 countries for almost 35 years. While this is an impressive statistic, it is only important if it means something to our customers. For example, why would a wind developer in India care if we are sending our data loggers to Japan? While it may not seem obvious on the surface, ...


    By NRG Systems

  • Hydrodynamic evaluation of a full-scale facultative pond by computational fluid dynamics (CFD) and field measurements

    Knowledge of the hydraulic behaviour is very important in the characterization of a stabilization pond, since pond hydrodynamics plays a fundamental role in treatment efficiency. An advanced hydrodynamics characterization may be achieved by carrying out measurements with tracers, dyes and drogues or using mathematical simulation employing computational fluid dynamics (CFD). The current study ...


    By IWA Publishing

  • Air gap magnetic field – key parameter for synchronous and asynchronous machine fault detection

    Abstract Calculations and measurements of a magnetic field at specific places in a machine air gap have been performed in order to determine magnetic field sensitivity to machine geometry and fault occurrence. Installation of measuring coils and a Hall sensor on and around the stator tooth, around stator yoke and the pole shoe has been considered.  ...

  • Momentum Flux: Gross, Scalar, Alongwind, or Net?

    Modern micrometeorology is an amalgam of two traditions: one arises from field measurements in the open atmosphere and another from wind tunnel experiments. Early micrometeorological field work, and even relatively recent studies (viz. the von Karman constant experiments by Frenzen and Vogel, 1995), were done with precision cup anemometers, which can only provide a scalar speed measurement. Most ...

  • Wind resource assessment using numerical weather prediction models and multi–criteria decision making technique: case study (Masirah Island, Oman)

    The Authority for Electricity Regulation in Oman has recently announced the implementation of a 500 kW wind farm pilot project in Masirah Island. Detailed wind resource assessment is then required to identify the most suitable location for this project. This paper presents wind resource assessment using nested ensemble numerical weather prediction (NWP) model's approach at 2.8 km resolution and ...


    By Inderscience Publishers

  • Canarina DISPER software · contamination control · commands 29

    Wind angle (0 to 360 degrees): It is the horizontal angle of wind measured clockwise from the North (at the window top).   Ambient temperature (K): The temperature of the medium surrounding an object.  This is the air temperature at stack ...

  • Lufft WS200 wind sensors on a research station in the Antarctica - Case Study

    Base Orcadas is an Argentine scientific research station in the Antarctica. It is located on Laurie Island, one of the South Orkney Islands (Spanish: Islas Orcadas del Sur), at 4 meters (13.1 ft) above sea level and 170 meters (558 ft) from the coastline and is the oldest one there which is still in operation. The nearest port is the Argentine city of Ushuaia, which is 1,502 km (933 mi) away. ...

  • 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

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