Variety of Pinger Use

Government agencies and marine service companies are finding a variety of uses for acoustic pingers and pinger receivers. Pingers are signaling devices that can be attached to an underwater site or instrument package. Using the pinger receiver, a gun-like instrument carried by a diver, the sonar signal transmitted by the pinger can easily be detected and followed to its source.   Scientists at the US National Marine Fisheries Service attach pingers to instruments that help them monitor the health of our oceans. They never need worry about losing an expensive instrument like a Current, Depth, and Temperature (CTD) probe when... (read more)
2009-10-05 03:56:46

Low-frequency Acoustic Pinger

JW Fishers, USA, has recently added a new low-frequency pinger to its line of acoustic devices. The new model has a significantly longer transmission range (3 to 6 miles compared to 2,000-3,000 feet for a conventional pinger), a longer battery life, and a variety of other new features including delayed start which allows the pinger to lie dormant for up to a year before beginning to transmit. The search for MH370 has put a lot of undersea technology in the media spotlight. Equipment such as the AUV and acoustic pinger are now part of conversations at workplaces and homes. Pingers... (read more)
2014-04-28 10:50:12

PINGER Sub-Bottom Profiling Demo

Knudsen Engineering have put their new 15kHz Pinger sub-bottom profiling system through its paces on Lake Champlain Vermont with the support of Middlebury College on their research vessel R/V Baldwin. During the demonstration the Pinger was operated in water as shallow as 1.5 metres. Shallow water has always been a problem for conventional SBP's because of transmission pulse ringing. Data processing was performed with Chesapeake Technologies SonarWiz 5 software.     The Pinger features chirp transmission and a large aperture receiver using the latest PVDF technology that provides higher directivity while remaining lightweight. The Pinger SBP's receive array also has... (read more)
2011-07-21 09:43:30

Aviation Pinger Line Sold to RJE International

Teledyne Benthos, USA, has sold the Benthos aviation pinger product line, to RJE International, which includes the ELP-362D Underwater Locator Beacon. In this transaction, the Benthos intellectual property related to the manufacturing of underwater locator pingers for aviation black boxes and associated accessories has been sold to RJE, who will build and manufacture pingers for the aviation market. Benthos has manufactured FAA approved pingers since it acquired the technology in 1999. RJE has been an active master distributor of undersea location equipment since 1991. Benthos will retain all other technologies in its undersea location, positioning and communications lines, including pinger... (read more)
2014-06-03 01:16:22

MBDA Orders IXSEA Pingers

IXSEA announced an order to supply its RP312 pingers to MBDA for use on its EXOCET missiles; these pingers allow the easy retrieval of missiles used in exercises and training. This contract is for the delivery of several dozen pingers and a maintenance contract for those already delivered. The RP312 pinger is part of IXSEA’s range of pingers. The RP162 recovery pinger is designed for the emergency underwater recovery of data and cockpit voice recorders. The RP162 can also be used on small ROV’s, mines, and torpedoes and is a highly reliable and rugged acoustic pinger which operates up to... (read more)
2009-06-17 08:46:41

Could Adaptive Pingers Have Aided Search for MH370?

Adaptive Pinger Technology for Undersea Location
Although the number of aircraft lost at sea is not very high, over the past years a number of aircraft have suffered precisely that fate. With the recently renewed search for Malaysian Airlines flight 370 (MH370), one wonders about the technology in the underwater location of aircraft and other high-value objects. Underwater locator beacons (ULBs or ‘pingers’) are used for this, either on the airframe itself or on the black box. This article proposes making use of technological advancements to allow better detection. Missing Airliners During the initial search for MH370 nearly 4 years ago, it became apparent that better... (read more)
2018-02-20 10:39:34

Novel Uses for Acoustic Pingers

Military units and scientists are finding a broad range of applications for acoustic pingers, signalling devices that are attached to an underwater site or instrument package. Using a pinger receiver, carried by a diver or deployed from a boat, the sonar signal transmitted by the pinger is easily detected and followed to its source. Researchers at Pukyong National University in Korea are working with scientists from the country's Hydrographic and Oceanographic Administration (KHOA) to study the affects of ocean currents. One of the instruments they employ is the Acoustic Doppler Current Profiler (ADCP) which is used to measure current flow.... (read more)
2010-10-13 04:49:10

Acoustic Pingers for Submarines and AUVs

The economy appears to be in recovery, because sales of personal submarines and autonomous underwater vehicles (AUV) are on the rise. One company specialising in private submersibles is U-Boat Worx in The Netherlands. These underwater vehicles are popular with tourist destinations, scientific missions and a wide range of boating enthusiasts. Several models are available with depth ratings from 100 to 1,000 metres. Many subs have an acoustic pinger. This underwater signalling device transmits a sound wave that can travel more than a kilometre and be detected by a pinger receiver, thus allowing its movements to be tracked from the surface.... (read more)
2013-06-27 10:02:33

Underwater Positioning

Centimetric Accuracy Underwater-GPS
By Camille Béchaz, ACSA and Fran­­çois Boucquaert, Fugro-Topnav, France Fugro evaluated the accuracy of the GPS Intelligent Buoy (GIB-Lite) system for its possible use in shallow-water offshore underwater positioning applications. The trials proved that system accuracy could be brought up to centimetre level, the distance between two simultaneously tracked acoustic pingers having a standard deviation of 8cm. Additional works next to an offshore production platform are often required to increase oil recovery from an existing reservoir or to maintain its production rate over a longer period of time. The seabed near such a production platform typically shows pipelines, electric cables,... (read more)
2008-01-01 01:00:00

Relocation and Recovery of Autonomous Systems

Falmouth Scientific, Inc. has presented two new products to assist in the relocation and recovery of autonomous underwater systems and assets: the SAF-553 Stand-Alone Flasher and the ELPF-553 Flash-Pinger. These are small, lightweight, battery-powered, intelligent devices that can be mounted directly on AUVs, gliders or other underwater equipment for recovery after their mission duration has elapsed. Multiple user-programmable settings allow for selection of delay, timing, flashing, and frequency options which enable use in a variety of different applications. The Stand-Alone Flasher uses high-power, high colour-temperature LEDs for optical flashing, and the Flash-Pinger adds a pinger transmitter for acoustic tracking below... (read more)
2016-09-22 01:28:39
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