multi-frequency cable locator Articles

  • Utilizing a Multiple Metal Detector Array for Locating Anomalies Indicative of Ferrous and Non-Ferrous OE/UXO

    ABSTRACT An array of three Geonics Limited EM61-MK2 metal detectors was utilized to identify subsurface metallic anomalies at the Mare Island Naval Shipyard in Vallejo, California. The goal of the 120-acre survey was to locate anomalies indicative of ferrous and nonferrous ordnance and explosives/unexploded ordnance (OE/UXO) in dredge pond berms with particular attention to 20 mm high explosive ...


    By Weston Solutions, Inc

  • PULSE FRC – frequency response correction compensation is a good thing

    Furthermore, increased flight operations can be conducted around more restrictive airports. The determination of an aircraft type’s noise is a complex process guided by documents such as: International Civil Aviation Organization(ICAO) Annex 16 – Environmental Protection, Volume I – Aircraft Noise Federal Aviation Administration (FAA)CFR14 PART 36 – Noise ...

  • Case study - Fred Hartman Bridge - Harris County, Texas

    Service: SoundPrint - Bridges Client: Texas Department of Transportation (TxDOT) Project Date: 2002 Type of Bridge: Fan arranged cable-stayed bridge Length: 4.185 kilometres (2.60 mi) The Fred Hartman Bridge was opened to traffic in 1995 and is one of the largest cable stayed bridges in the United States. The cable stayed bridge portion of the bridge ...


    By Pure Technologies

  • Innovation on LG Sonic technology to control algae

    As a global leader in the development and research to ultrasonic algae control, LG Sound has been providing environmentally friendly, efficient and cost-effective solutions to control algae, to all markets where water is being stored. With the release of our newest updated product, the LG Sonic XXL plus, it is now possible to control nearly all types of algae in a range of 186 meter (600 ft) ...


    By LG Sonic

  • Gas detector communication technology for offshore oil and gas platforms

    In few applications is safety as important as on offshore oil and gas platforms. Explosive hazards from hydrocarbon gases and vapours are an ever-present risk, whilst toxic hydrogen sulphide gas and depleted oxygen environments can pose significant risks to personnel. Gas detectors are therefore essential to provide dependable early warning of gas hazards. Gas detectors are permanently installed ...

  • Monitoring the holy ground of FC Basel - Case Study

    The grass on athletic grounds, particularly in large stadiums, is not only an important concern for sports but also one of the largest cost drivers. Therefore, the monitoring and care of the grounds takes on special significance. PlantCare has installed a soil moisture monitoring system as part of the redesign of the entire playing field at St. Jakob-Park stadium in Basel. The system measures ...


    By Eijkelkamp Soil & Water

  • GPR: a new tool for structural health monitoring of infrastructure

    Abstract Recent developments in acquisition methodology, data acquisition systems, post-processing software, and the availability of user friendly high-frequency antennas have enabled the GPR user to generate accurate three dimensional images of the interior of concrete structures. Four case studies are discussed with emphasis on output that is readily understood by the ...


    By SewerVUE

  • Case study - Algae control in fire reservoir Häagen Dasz production facility

    A 77 meter rainwater reservoir for fire extinguishing purposes was completely covered with filamentous green algae. The green filamentous algae clogs regularly filters located before the jockey pumps.  The Challenge: Control Green Algae and Lower the Use of Oxygen Peroxide Located in Tilloy-lès Mofflaines, France, the 77 meter long rainwater reservoir for fire ...


    By LG Sonic

  • Distributed Thermal-Acoustic Data Integration

    Silixa has developed a technique called Distributed Thermal Acoustics (DTA) to monitor simultaneously the thermal and acoustic profile along a hybrid optical fibre cable in submarine environments. Using its world leading distributed fibre optic technology (ULTIMATM DTS and iDASTM) Silixa deployed an optical fibre cable along the seabed and across the water column in an active gas seepage ...


    By Silixa Ltd

  • Down-hole tomography

    This is a collection of various cases where the 2D resistivity imaging method pioneered by Advanced Geosciences Inc have been successfully applied. Click on a section below and you will be shown a full 2D resistivity imaging brochure detailing the ...


    By Advanced Geosciences, Inc.

  • How A Wireless Mesh Makes Tank Level Monitoring Easy

    Want to avoid wires? Want to lower the cost of installing sensors? If so, a wireless mesh is a good way to go. It’s a great solution for both remote and local tank level monitoring, and it’s an industrial grade, reliable, and proven technology. What is a wireless mesh? A wireless mesh network is a series of radios that talk to each other. It’s a point to ...

  • PULSE smart start – a user’s experience

    Measuring on a Grounded Aeroplane   In the early days of PULSE, a team from Brüel & Kjær had the opportunity of performing a ground test on a Boeing 767. The left engine of the aeroplane had undergone a scheduled overhaul. The engine was reassembled and verified in a test cell. Everything seemed fine. The engine was mounted on the aeroplane and the aeroplane was ...

  • Groundwater exploration

    This is a collection of various cases where the 2D resistivity imaging method pioneered by Advanced Geosciences Inc have been successfully ...


    By Advanced Geosciences, Inc.

  • Engineering Geology

    This is a collection of various cases where the 2D resistivity imaging method pioneered by Advanced Geosciences Inc have been successfully applied. Click on a section below and you will be shown a full 2D resistivity imaging brochure detailing the ...


    By Advanced Geosciences, Inc.

  • Putting the surface microphone through its paces at Airbus

    Thirty-odd years later, the A380 – the widest commercial airliner available today with seating for 525 passengers – will be entering into service. It is another testament to Airbus’ commitment to innovation and intelligent design. Therefore, Airbus came to Brüel & Kjær for the development of a transducer they could invariably use to measure sound pressure in ...

  • Upgrading from Pellistor Gas Sensors to Infrared Technology

    In this article Andy Avenell, Crowcon’s Fixed Systems Product Manager, considers the shift towards infrared (IR) gas sensor technology in the oil and gas industry. Abstract Flammable gases and vapours can present considerable dangers in many industrial applications, none more so than the processes involved in extracting, transporting and processing oil and gas. Fast and reliable ...

  • 50th anniversary of world`s first sound level meter

    Sound Level Meter Celebrates 50th Anniversary 2010 is the year we celebrate the 50th anniversary of Type 2203, the mother of all sound level meters. It was the world’s first precision hand-held and transitorised sound level meter. Produced for 21 years, it sold a record number of 17300 units. With its upgrades Type 2204 (Impulse time constant) and 2209 (peak detector), it accounted for a ...

  • Presses and shredders from one source - Case Study

    Channel baling press, document shredders and hard disc shredder: Schmitt Recycling in Fulda is based entirely on HSM. The proprietor, Wolfgang Schmitt, values the high performance and reliability of the HSM machines. The modern machine park helps him against major competitors. It is a bit like Asterix: Schmitt Recycling in Fulda is a smaller medium-sized waste disposal business with ...


    By HSM GmbH + Co. KG

  • Solar thermal power coming to a boil

    After emerging in 2006 from 15 years of hibernation, the solar thermal power industry experienced a surge in 2007, with 100 megawatts of new capacity coming online worldwide. During the 1990s, cheap fossil fuels, combined with a loss of state and federal incentives, put a damper on solar thermal power development. However, recent increases in energy prices, escalating concerns about global ...


    By Earth Policy Institute

  • Advanced gas detection technology supports arctic greenhouse gas research

    Enormous quantities of greenhouse gases (GHG) exist within Arctic ice and frozen soils, so with the threat of global warming, a clear understanding of the relationship between GHG in the atmosphere and in the ice/soil is vital because melting of permafrost could cause a dangerous climate tipping point. There can be few more challenging environments for monitoring gases, but PhD researcher Martin ...


    By Quantitech Ltd

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