Dynamic Laser Scanning Set to Innovate Metrology Techniques

In December 2016, DOF Subsea (DOF) conducted a demonstration of dynamic underwater laser scanning as a replacement for traditional metrology techniques at The Underwater Centre in Fort William, Scotland. The demo showcased 2G Robotics’ and Sonardyne’s complete dynamic survey solution. The solution integrates 2G Robotics’ underwater laser scanner, the ULS-500 PRO, with Sonardyne’s inertial navigation sensor, SPRINT; Syrinx DVL and 6G acoustics. Seatronics, channel partner for 2G Robotics and provider of Sonardyne rental equipment, provided sensors and project/technician support. LBL and Photogrammetry Historically, metrology campaigns using Long BaseLine (LBL) acoustics and photogrammetry have demanded significant vessel and ROV time. Additionally, LBL... (read more)
2017-03-22 09:12:55

Sonavision Launch TITAN Scanning Sonar

Sonavision Ltd announce the arrival of the long range sonar TITAN, the latest member of the Sonavision Scanning Sonar family. Although, measuring only 226mm by 90mm, the TITAN is capable of ranges up to 300m and is the only sonar of its size with the performance of a high-resolution sonar. TITAN uses a special wideband 1:3 Piezo Composite Transducer. Benefits of using composite transducers are enhanced beam control, optimisation of transmit and receive and suppressed side-lobes to reduce false returns. TITAN is available as a 500kHz sonar (standard) with options for different frequencies and ranges. The transducer uses separate transmit... (read more)
2005-03-18 12:00:00

Scanning Sonars Assist Underwater Searches

Scanning sonar is fast becoming the tool of choice for underwater search operations by a diverse group such as public safety dive teams, universities and commercial diving companies. Reasons for the popularity of the sonar include its effectiveness and cost, which is only a fraction of a side-scan sonar.     Scanning sonars are in demand because they create a picture of the underwater environment regardless of water clarity. Although these sonars lack the long range and very high resolution of side scan, they still give a larger and better picture of the underwater environment compared to an underwater camera... (read more)
2009-11-02 11:31:13

Nuclear Underwater Laser Scanner

Newton Labs has developed and deployed a laser scanning product specifically designed to operate underwater, in-vessel, within either PWR or BWR reactors. The device, the NM200UW Nuclear Underwater Laser Scanner, designed in partnership with a major US nuclear utility, produces a point-cloud output so detailed that when utilised with industry-standard three-dimensional software a full measurable CAD model can be generated.     “This is a very exciting new product for the nuclear industry.” stated John W. Bramblet, president and CEO of Newton. “The need has existed for some time to be able to produce precise measurements and dimensions in-vessel. The... (read more)
2011-02-11 03:49:00

Hydrographic Airborne Laser Scanner

RIEGL introduced the VQ-820-G Hydrographic Airborne Laser Scanner in September 2011. This device has been specially designed for combined land and hydrographic airborne surveying. The high-accuracy ranging is based on echo digitisation and online waveform processing with multiple target capability.   Laser range measurements for high-resolution surveying of underwater topography, the bottom of shallow waters and riverbeds, are carried out with a narrow, visible green laser beam at 532nm, emitted from a powerful laser source. Depending on water turbidity, this laser wavelength allows measuring into water.   (read more)
2011-10-25 03:20:17

Black Laser Learning

Enhancing formal instruction
Traditionally hydrographic/marine geophysical training has been conducted by equipment manufacturers or educational institutions. As a long time technical instructor for various equipment manufacturers Vince Capone, founder of Black Laser Learning saw a gap in the hydrographic training market. There was a need for economical training conforming to the client's schedule. Once Black Laser Learning identified the training need, there was considerable debate over how best to present the information? There existed a small but high quality library of written reference materials. We did not want to duplicate those materials and also develop a product go beyond the written text with... (read more)
2008-01-01 01:00:00

Scanning Data Integrated in PDS2000

Fusing data sets from multiple sensors is a demanding requirements being seen more and more frequently in client specifications, typically combining photogrammetry or laser data with multibeam sonar data to create a seamless image of structures above and below the waterline. RESON have now prepared the PDS2000 software package to combine data under the waterline with data above the waterline to show breakwaters and harbour walls. Data from the laser scanners are shown in real time, and are fully corrected for heave, roll, pitch, heading and position. Together with the multibeam data, crisp laser images are presented to the operator... (read more)
2010-08-23 02:08:04

Trimble Strengthens 3D Scanning Portfolio

Trimble has acquired the assets of privately-held Callidus Precision Systems. Callidus is a provider of 3D laser scanning solutions for the industrial market. Financial terms were not disclosed. Callidus' products enhance Trimble's 3D scanning portfolio, with both close- and mid- range scanning technology.     The Callidus CP 3200 time-of-flight and the Callidus CPW 8000 pulse-wave scanners are utilised for applications within the power and manufacturing process plant markets as well as in shipbuilding and offshore applications. Spatial data captured by 3D scanners is used throughout the plant lifecycle including design, operation and maintenance. The Callidus portfolio also includes the... (read more)
2009-01-16 11:14:14

Scanning Sonar for Poor Visibility Underwater Environments

US-based Blue Robotics is launching the Ping360 Scanning Sonar, which offers small ROVs the ability to navigate in low visibility water conditions. The Ping360 is a mechanical scanning sonar – it uses a small acoustic transducer mounted on a motor that rotates it in one-degree increments. As it rotates, it transmits and receives acoustic pulses to build a 360-degree image of the surroundings. This is similar to laser scanners and LIDARs used for ground robotics and autonomous cars, but using sound waves instead of light. Maximum Water Depth of 300 Metres When mounted on a remotely operated underwater vehicle (ROV),... (read more)
2019-09-23 09:55:59

Mechanical Scanning System for Dam Inspection

Tetra Tech has selected BlueView Technologies to provide detailed 3D multibeam scans of the outflow ‘draft' tubes of a significant Hydroelectric dam in Washington State to check for obstructions, scouring, and erosion. The outflow control doors were obscured and not accessible to be surveyed with traditional surface vessel-mounted multi-beam echosounder sonar. Tetra Tech chose the BV5000-1350 3D Mechanical Scanning System with a portable tripod for the project. The BlueView BV5000 was deployed from a 12-foot aluminum boat, and lowered to the rocky reservoir bottom 65 feet below the surface. A total of seven individual scans were taken in less than... (read more)
2010-12-14 02:03:52
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