Investment in Winch for Vertical Turbulence Profiler

Rockland Scientific Inc. (RSI), at stand F3 during Ocean Business taking place from 14-16 April 2015 in Southampton, UK, has issued a purchase order for the second unit of a small instrumentation winch from the MacArtney Underwater Technology Group (MacArtney). The winch system is specifically designed and optimised for use with the RSI VMP-250 vertical turbulence profiler. Customers using the RSI VMP-250, designed for coastal research applications, were requesting ‘turn-key’ system packages that include VMP-250 profiler, deployment line and winch, which could be used together on any research vessel, anywhere in the world. MacArtney and RSI delivered the first VMP-250... (read more)
2015-04-15 03:40:33

FlowQuest 150 Long-range Acoustic Current Profiler

Following the FlowQuest 300 and 600 acoustic current profilers, LinkQuest has introduced the long-range FlowQuest 150 current profiler, extending the same acoustic Doppler technology to lower operating frequency with higher power transmission. The FlowQuest 150 acoustic current profiler is capable of reaching up to 500 meters in range with an accuracy of 1% +/- 5 mm/s. According to LinkQuest it is one of the very few acoustic current profilers available in the market capable of reaching such a long distance. The standard depth rating of the system is 800 meters with options for 1500, 3000 and 6000 meters. With its... (read more)
2006-12-05 12:00:00

iXSea Launches ‘ECHOES’ CHIRP Profiler Range

iXSea has recently launched ‘ECHOES’, a new generation of CHIRP sub-bottom profilers. Designed to meet the most demanding of geophysical applications ranging from coastal works to full ocean depths, the ECHOES CHIRP range provides better knowledge of the sediment acoustics and geology through increased penetration and superior resolution. The ECHOES CHIRP 3.5 kHz antenna is based on 7 wideband technology transducers which provide for improved directivity and has a power output of up to 9KW. The flat spectrum ranges from 1.8 to 5.2 kHz and is centred on 3.5 kHz. The data acquisition software (Delph Seismic+) includes a true multi-ping... (read more)
2005-05-05 12:00:00

Multi-Frequency Acoustic Water Column Profiler

ASL Environmental Sciences of Sidney (BC, Canada) is releasing the next generation of AWCP - the Multi-Frequency Acoustic Water Column Profiler. The MF-AWCP is capable of operating up to 4 frequencies while maintaining the same precision and low power capacity that the original AWCP had.     The first unit, a two-frequency version, has been delivered to Louisiana State University and a three-frequency version has just been delivered to Oregon State University. The Acoustic Water Column Profiler can monitor the presence and abundance of zooplankton within the water column by measuring acoustic backscatter returns with ultrasonic frequencies. Other sonar targets... (read more)
2009-04-16 09:26:10

L3 Klein CHIRP Sub-bottom Profiler

L-3 Klein has launched a CHIRP Sub Bottom Profiler (SBP) attachment for the 3000 Model Side-scan Sonar. The older SBP was a single transducer 3.5kHz "pinger" and delivered satisfactory performance for a lightweight SBP, but lacked penetration and resolution. The new SBP has a two transmit transducers and linear hydrophone Mills Cross configuration for optimum "sea bottom footprint", as well as a CHIRP transmit pulse.   Deliveries of the new K-CHIRP Model 3310 Sub Bottom Profiler are based on feedback from the demos; this SBP will raise the performance bar for Sub Bottom Profilers at a competitive price. (read more)
2007-08-20 04:04:15

AML Moving Vessel Profiler to Augment NSCC’s Seafloor Mapping Work

A newly acquired AML Moving Vessel Profiler (MVP) will help Nova Scotia Community College (NSCC) develop improved methods of mapping the seafloor. With its ability to conduct real-time, vertical profiles continuously and automatically, the MVP200 is expected to improve the efficiency and quality of data collection. Looking to add ground-truthing to the process of multibeam data acquisition, AML and NSCC are working together to integrate lights and a high-resolution camera to the tow body that houses the underway profiling system’s sound velocity (SV), conductivity-temperature-depth (CTD), or multiparameter instrumentation. Ground-truthing is a critical step in validating the seafloor characteristics for interpretation of... (read more)
2019-08-08 09:19:02

Raft-mounted Multifrequency Acoustic Zooplankton Fish Profiler with Cellular Modem

The National Research Institute of Fisheries Engineering (NRIFE, Kamisu) of the Japan Fisheries Research and Education Agency (FRA, Yokohama) has been deploying an ASL Environmental Sciences multifrequency Acoustic Zooplankton Fish Profiler (AZFP 125, 200, 455 and 769kHz) in Yamada Bay, 450km north of Tokyo, since 2013. The collected data is being used to understand seasonal variations of zooplankton in the water column. As the AZFP is battery powered and enclosed in a pressure case, periodic recovery has been necessary to access the data. To help the scheduling of the release of hatchery reared juvenile salmon and increase their survival in... (read more)
2018-03-06 08:50:58

2MHz Channel Added to Acoustic Zooplankton Fish Profiler

With its selection for inclusion in the US Ocean Observatories Initiative (OOI) in 2014, ASL’s Acoustic Zooplankton Fish Profiler (AZFP) is becoming the global standard for autonomous scientific multi-frequency echosounders. A 2MHz channel has been added to its product, which already includes 38, 70, 125, 200, 455 and 769kHz. This high-frequency, short-range channel is aimed at studies involving sediment and small zooplankton. The cabled single frequency 2MHz transducer (image) has a nominal beam angle of 7 degrees at -3dB matches the other high frequency AZFP channels, suited for multiple-frequency studies. The ASL AZFP is a tool for scientific research and... (read more)
2015-06-18 09:12:56

ASL Announces 2018 Acoustic Zooplankton Fish Profiler (AZFP) Award Winner

ASL Environmental Sciences has announced the winner of its third annual Acoustic Zooplankton Fish Profiler (AZFP) award. Dr Lilian Lieber, research fellow at Queen's University Belfast, has been selected to receive the use of one of ASL's four-frequency (38/125/200/455kHz) AZFPs for her proposal entitled 'Drivers of Predator-Prey Coherence in Energetic Environments'. As marine renewable energy projects have led to a rapid increase in the installation of tidal turbines in coastal channels, it is increasingly important to understand the bio-physical mechanisms driving predator–prey interactions in these highly dynamic environments. The award includes the free-of-charge use of a four-frequency AZFP including batteries... (read more)
2018-09-11 09:16:00

Ageotec Launches New Mini Sound Velocity Probe and Profiler

Ageotec has extended its Sound Velocity Probes range with the introduction of IMSV, a new advanced system for real time velocity measurement of sound propagation in water. Very rugged, accurate, easy to calibrate cheap and lightweight; based on CTD measurement and conversion with Chen & Millero formula, IMSV is also more affordable and robust than other systems based on direct Sound Velocity Measure.   Ageotec offers both Titanium version for fixed probe used for beamforming on Multibeam echosounders and other acoustics devices, and AISI 316 version for 2000 metres depth profiler.   Available from September.  (read more)
2009-08-26 04:46:05
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