Page 71: of Marine Technology Magazine (September 2014)

Earth 3D map trace. The Dyena PRO unit constantly monitors the shock and vibrations received by the vessel structure and stores the data to the onboard solid state memory, alongside position, speed, heading and time. Sampling at 1,200 Hz, re- cording the peak and RMS averages every second and storing individual daily records stored alongside a Google Earth 3D map trace, this provides the user with a concise and easy to interpret overview of vessel operations.

Raw data is continuously buffered and when a signifi cant event is observed, Dyena PRO records the accelerations lead- ing up to the event as well as those afterwards at 1,200 Hz, providing the user with the complete record of the relevant ac- celeration data. There is no longer any need to review a mass of spreadsheets, as any data from events that exceed the user confi gurable threshold are presented in a clear and formatted manner with all the information in a single fi le along with the daily overview spreadsheet and 3D map trace, meaning the user can build up a complete picture of the vessels use and the cause and effect of any incident. www.dyena.com

DANTE’s Solar PowerPak

Soundnine Inc. (S9) shipped eight DANTE Buoy Controller

Systems with a new Solar PowerPak. S9 Value Added Part- ner and systems integrator Imbros Pty. Ltd. of Hobart, Tas- mania will install the Buoy Controllers, Solar PowerPaks and

Sea-Bird Scientifi c water quality moni- toring instruments on locally fabricated buoys, producing turnkey monitoring systems with Iridium data telemetry. The mechanical designs of the Controller and PowerPak permitted a smaller, simplifi ed and less costly buoy. The turnkey DANTE System is designed to provide a total solution for measurement acquisition, data delivery, and data display and management. The DANTE Buoy Controller was introduced at Oceans 2013. The new Solar PowerPak will make its public debut at Oceans 2014. It can be used with up to four plug-in solar panels that are immersion-proof, corro- sion-proof and extremely robust, thanks to a unique reinforced composite construction. www.soundnine.com

New Chlorophyll Sensor

Turner Designs developed a chlorophyll sensor that uses a red excitation light source to detect algal fl uorescence for estimat- ing algal abundance. According to Turner, the sensor is ideal for environments rich in DOM and blue-green algae. Because

DOM doesn’t ab- sorb red excitation energy, but algae do, red excitation fl uorimetry provides fl uorescence detec- tion free from inter- ference errors caused by DOM. Studies done with both blue and red excitation chlorophyll sensors showed at least a 16% overestimation of the actual chlorophyll concentration when using the blue excitation sensor and not applying a correction, whereas the red excitation sensor needed no correction. This new red excitation chlorophyll sensor is available as a single sensor in our Cyclops-7 Submersible Sensor family or as one of three sensors on the C3 Submersible Fluorometer. Standard optical kits are available for detecting: in vivo Chlorophyll (blue or red excitation), Crude Oil, Refi ned Fuels, CDOM/

FDOM (dissolved organic material), Blue/Green Algae, Fluo- rescein Dye, Rhodamine Dye, PTSA Dye, Optical Brighten- ers, Tryptophan, and Turbidity. www.turnerdesigns.com www.marinetechnologynews.com

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