sonar technology used in coal mining

Trimble Geomatics Office - Technologies of TerraSond: GIS, Sonar ...

Coal Facility Landing Site: Cook Inlet, Alaska: Our hydrographic surveyors provided ... Our surveying services were used to support the design project for a new ... Red Devil Mine Debris Consolidation and Disposal project, then measured and...


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Pueblo Viejo Gold Mine - Mining Technology

Pueblo Viejo Gold Mine is located 100km away from the capital city of Santo Domingo ... with Hawk's sonar technology are being used to control the mining operations. ... The Black Thunder thermal coal mine, located in the Southern Powder.


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Patent US20140104979 - Ground-Penetrating Tunnel-Detecting ...

Apr 17, 2014 ... Any sonar returns are bandpass filtered so only an acoustic frequency ... Three or more acoustic vector sensors on the surface can be used ... into the earth to find coal deposits, mining hazards, trapped miners, and even smugglers' tunnels. ... Such conventional technology is concerned with detecting point...


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Sub-terranean Robot: A Challenge for the Indian Coal Mines

together with a number of add-on cards used for specific purpose. A high band .... robotics technology for coal harvesting at a major Australian open cast mine. ... pencil beam SONAR (e.g. Micron SONAR) and a underwater camera, so that...


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Could Robots Replace Humans in Mines? : NPR

Aug 9, 2007 ... A mining robot, called Groundhog, in action at a Pennsylvania coal mine ... Mellon have experimented with sonar and radar guidance systems, and with some success ... Another promising technology uses ultra-low frequency...


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Mine Safety and Health Administration (MSHA) - Geophysical Void ...

technologies to assist mine operators in locating abandoned mines to ... breakthrough it was determined that many existing coal-mining related impoundments had been ... The states used this money to develop and enhance systems for collecting, digitizing, geo- ... filled voids) and downhole sonar (for water filled voids).


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Sonar technology will be used to optimise thickeners at Peublo Viejo ...

Sonar technology provided by Hawak Measurement of Australia will be used to optimise thickeners at the Peublo Viejo Mine. Image courtesy of Hawk ... Hard coal mining in Germany, centred on the Ruhr, Saar and... Cordero Rojo Kennecott...


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2 - Meridian

Getting SMART with Technology Integration in the Classroom ... included coal formation, drilling, volcanics, erosion transportation, sonar mapping, ... To introduce the participants to the mining industry and how technology is used at the mine, two ... This simulated the coal mining process and gave teachers a great way to...


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ultra sonic range finding for distance measuring in coal mining

IJRET: International Journal of Research in Engineering and Technology ... Abstract. Measuring distances has always been a challenge in coal mines as it involves a lot of risks and disturbances. ... is used to generate the pulses, calculating the distance by sensors and ... Sonar, Ultrasonography, burglar and testing [6]...


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Radio-Style System of Communication Via Magnetic Waves ...

Aug 9, 2010 ... After 13 miners were trapped in a coal mine in Sago, West ia, four years ago, rescuers didn't ... New technology to improve mine safety.


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Wastewater Process Map - Hawk Measurement

Reliable sonar bed level technology for coal mining thickeners ... The Gladiator Pump Protection Switch can be used in applications where pipe or wall mounting...


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Dave Hallman, Abandoned Mine Lands Subsidence Expert - Tetra ...

In the case of old historic coal mines, many communities were built directly on top of ... The empirically-based influence function code used in the SDPS program, ... imaging technologies combined with downhole sonar (for water-filled void) or...


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Recent developments in subterranean robotics - The Robotics Institute

1June 2002: The Quecreek Coal Mine in Pennsylvania floods leav- ing 9 miners trapped for 3 days. ..... the technology (i.e., sonar over laser) used to acquire.


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Matthe Pope - Personal Sonar System

inland lakes or coal mining strip pits that have poor visibility. ... has been written broadly enough to embrace GPS technology and internet and ... the Personal Sonar System beyond the obvious uses of avoiding sharks or locating sport-.


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Trimble Geomatics Office - Technologies of TerraSond: GIS, Sonar ...

Coal Facility Landing Site: Cook Inlet, Alaska: Our hydrographic surveyors provided ... Our surveying services were used to support the design project for a new ... Red Devil Mine Debris Consolidation and Disposal project, then measured and...


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Ancient Fish Gets Techno Boost — High Country News

Aug 17, 2011 ... The advanced sonar technology works much like an ... But what began as James Bond-worthy surveillance technology used to secure the homeland, is now .... Courts force feds to consider climate impacts of mining coal.


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Coal Mining Technologies

A number of alternative technologies are associated with each method. ... Surface mining is used when the coal is typically less than 200 feet below the surface.


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Modern Mining Equipment - Kentucky Coal Education

Home, Kentucky Coal, Modern Technology, Teacher's, Fun Stuff, Site Statistics ... Mining Equipment, Clean Coal ... Equipment used in the Mining Industry today.


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Mining Clarifier Bed Level Control - Hawk Measurement Systems

Reliable sonar bed level technology for coal mining thickeners, monitoring bed level height and water clarity. Application problem: The customer had used a...


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Sonar Imaging of Flooded Subsurface Voids Phase I: Proof of Concept

Apr 15, 2011 ... Both surface-based and downhole technologies are available to investigate the .... the main difference that sonar is used to obtain the distance measurements. ..... associated with an abandoned coal mine underlying the...


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Expedition Purpose - NOAA Ocean Explorer

Sonar (which is short for SOund NAvigation and Ranging) systems are used to ... Sonar technology is also capable of detecting objects that are in the water ... was first seen in miners working in pressurized coal mines (it was also a problem for...


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Seeing More, Seeing Better - Ampersand Communications

Pipe Eye Video has used technologies such as long-range inspection cameras, laser profiling, sonar ... "We live in what was once a very rich coal-mining community. ... It takes time to learn how to pick a good sonar unit and learn to use it.


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Our Team Sebring Software Inc.

... involved with the distribution of propane, natural gas, coal mining and other ventures. ... One of these was a sonar technology company based on a Norwegian ... responsibilities pertain to the business systems used at the Orthodontic office...


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Deep-sea Miners Engage Physical Oceanography - RDSea ...

sonar and/or seismic survey technology along with towed cam- eras. Sampling a ... that used by the coal mining industry, also known as a "cutter drum." A lifting...


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GEOPHYSICAL VOID DETECTION DEMONSTRATIONS Kanaan ...

abandoned underground coal mine, eastern Illinois. ... designed to advance current state-of-practices of geophysical technologies for detecting ... The information obtained from the RVSP and sonar mapping can then be used by: a) the mine.


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Study to investigate state of knowledge of Deep Sea Mining - Europa

Echo sounding (sonar) bathymetry. 24. 3.2.3 ... Resource Assessment, Reserve Evaluation and Mine Planning. 33. 4.1. Introduction into ..... Description of the technologies used in each link of the value chain; ...... terrestrial coal mining techniques form the basis for the design of seafloor mining equipment (Jackson. & Clarke...


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Beached Whales die due to Sonar Testing - Earth Portals

(*The death of canaries taken into coal mines warned the miners of troublebelow.) ... ourgovernment is pushing forward to deploy this risky technology in 80% of ... even at theconsiderably lower decibels used during brief public testing than...


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Ongoing Research at ARL:UT - Applied Research Laboratories

ARL:UT conducts mission-oriented research in acoustics (sonar), ... was initiated in 1949 to study high resolution sonar for mine hunting applications. ... Current work in this area is being pursued in ARL's Advanced Technology Laboratory. ... to include low frequency passive sonar used in undersea surveillance systems for...


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Surveying Services Offered By MinStaff Survey in QLD : Minstaff ...

Minstaff Survey service mine sites throughout Australia and overseas and across a range of ... Open Cut, Underground, Metalliferous and Coal Mining Operations. ... state-of-the-art sonar technology and equipment which is used in all facets of...


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Recommendations for Evaluating & Implementing Proximity Warning ...

Evaluating Proximity Warning Systems on Surface Mining Equipment ..... 7. Figure 2. An example of a sonar or ultrasonic sensor-based proximity warning ..... Distribution of accidents by mine type was fairly even among surface coal (29%), sand and gravel ..... Several technologies have been used to generate the marker.


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