field trials with trained meteorological observers. Back scatter receivers form part of our SWS 200 and 250 series and VPF 730 and 750 series. The Biral VPF-750 represents our most advanced visibility and present weather sensor, with the addition of external temperature and relative humidity sensors to aid discrimination between fog and non-liquid particles which lower the visibility, such as smoke, wind-blown sand and dust. An integrated freezing rain detector allows reporting of all forms of freezing precipitation, providing a comprehensive and reliable account of present weather for all environments.
Author Contact Details
Author: Alec Bennett PhD MInstP FRMetS CMet. Organisation: Biral – Bristol Industrial & Research Associates Ltd Job Title: Meteorological Products Manager. Residence: UK
Dr Bennett is the Meteorological Products Manager for Biral, UK. He has a PhD in Atmospheric Electricity and 10 years’ experience in research and development of lightning detection systems, including working at the UK Met Office and is a visiting Research Fellow at the University of Bath. He has written over 20 papers in atmospheric electricity, which have been published in peer-reviewed international journals.
Author: Jim Walker BSc MSc PhD. Organisation: BIRAL – Bristol Industrial & Research Associates Ltd Job Title: Project Scientist. Residence: UK
Dr Walker is the Project Scientist for Biral and is involved in developing new instrumentation and improving existing instruments and practices. He has a PhD in Physical Chemistry and several years’ experience working with the University of Bristol designing novel optical techniques for probing aerosol particles. Jim has written over 10 scientific papers discussing atmospheric aerosol and optical trapping techniques, which have been published in international peer-reviewed journals, and maintains close ties with the University of Bristol through his position as an honorary researcher.
Latest Measurement and Control Datalogger Released
Campbell Scientific, a maker of research-grade measurement instruments for over 40 years, has released an innovative new data-acquisition product: the CR310 measurement and control datalogger. The CR310 is the newest addition to the CR300 series and has the same capabilities of the CR300 datalogger, with the addition of removable connectors and an integrated 10/100 Ethernet connection.
A multi-purpose, compact, low-cost measurement and control datalogger, the CR310 is designed for making highly accurate measurements in the most unforgiving environments and is ideally suited for all environmental applications, including weather, water, structural, and renewable energy. This entry level datalogger, with its rich instruction set, can measure most analog or serial hydrological, water quality, meteorological, and industrial sensors.
The CR310 includes an integrated Ethernet interface, making it ideal for machine-to-machine (M2M) and Internet-of-things (IoT) applications requiring internet-connected remote monitoring and control. Simple connection to external wireless devices enables remote communication with satellite, cellular, and licensed radios. The CR310 is also available with optional integrated WIFI and license free radios for wireless networking. Providing complete compatibility with a variety of measurement and communication protocols, the CR310 supports TCP/IP, Modbus, DNP3, SDI-12, HTTP, FTP, and Email.
The CR310 has the greatest cost-to-performance ratio of any Campbell Scientific datalogger. For increased analogue measurement accuracy and resolution, it has a 24-bit analogue-to-digital converter, and high- speed processor. With 30MB, there is plenty of non-volatile flash memory for storage.
The CR300-series dataloggers are programmed with Campbell Scientific’s LoggerNet software, which includes a point-and-click program generator and a network planner for graphical layout of devices.
Campbell Scientific’s history of developing innovative products began in the 1970s, as one of the first to offer low-power, high-precision dataloggers for use in the field. The company has developed increasingly powerful dataloggers to satisfy customers’ measurement needs. To date, Campbell Scientific has manufactured more than 300,000 dataloggers.
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Sodar Precision Getting Very Close to Lidar Precision
The graphs above show intercomparison results between a PA0 Sodar and a Remtech WindCube V2 Lidar at 130m AGL (Above Ground Level). The experiment has been conducted by the meteorological group of the Bourges military proving ground in France.
There has been no post filtering of the data (1032 10-mn time steps data couples) neither for the PA0 nor for the WindCube V2. During all the period the standard deviation of the differences between the two instruments has been 29 cm/s and 4.8 ° for wind speed and wind direction respectively. You can contact Mr. Lagrue at Bourges Proving Ground if you would like more information about this experiment. Phone: +33 (0)2 48 27 44 38, or email:
fred.lagrue@
intradef.gouv.fr
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www.envirotech-online.com AET Annual Buyers’ Guide 2017
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