Page 74: of Marine Technology Magazine (July 2015)

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M R 100100 1953 County Street 1953 County Street

East Taunton, MA 02718 East Taunton, MA 02718

T: 508-822-7330 T: 508-822-7330

E: info@jw? shers.com E: info@jw? shers.com

W: http://jw? shers.com W: http://jw? shers.com

CEO/President: Karen Fisher CEO/President: Karen Fisher

No. of Employees: 20 No. of Employees: 20

In 1971 JW Fishers began manu- facturing underwater metal detectors for recreational scuba divers. Demand for its products grew and commercial diving companies and police depart- ments began asking for other types of underwater search equipment. In the late 70’s Fishers expanded its product line to include boat-towed detectors, video systems and ROVs. As comput- bottom strata layers. Fishers scanning sonar systems ers became smaller and more capable the company are popular with many public safety dive teams be- expanded into sonar; developing powerful, low cost cause of their economy. side scan systems. Today Fishers offers three side Fishers designs and manufactures all of its under- scans using the most commonly requested frequencies, water search systems at its factory in East Taunton, 100K, 600K, and 1200K. Mass. Its line of equipment includes hand-held and

The newest addition to Fishers product line is a sub boat-towed metal detectors, hand-held and boat-towed bottom pro? ler. This sonar’s low frequency sound magnetometers, underwater video systems, ROVs, waves are capable of penetrating through the ocean side scan sonars, scanning sonars, acoustic pingers and ? oor and producing images of objects buried in the receivers, and pipe and cable locators.

52, Avenue de l’Europe52, Avenue de l’Europe discharge, it is designed for longevity,

Marly-le-roi, Yvelines, France 78100Marly-le-roi, Yvelines, France 78100 reliability as well as very low power

T: +33 1 30 08 88 88 T: +33 1 30 08 88 88

E: [email protected] E: [email protected] consumption.

W: http://www.ixblue.com W: http://www.ixblue.com iXBlue FOGs are the result of more

CEO/President: Philippe Debaillon Vesque CEO/President: Philippe Debaillon Vesque than 30 years of research and devel-

No. of Employees: 500No. of Employees: 500 opment, and they address the most iXBlue is a provider of solutions demanding navigation applications and and services for navigation, posi- performance requirements from 0.1°/h tioning, and imaging, recognized to 0.001°/h. iXBlue FOGs are insensi- for its work on the development of tive to temperature changes and mag- ultimate performance ? ber-optic netic perturbations, as well as resistant gyroscopes (FOG), acoustic and to extreme shocks and vibrations. sonar signal processing and inertial-acoustic sensor As of the end of 2014, iXBlue has delivered more data fusion. than 10,000 FOGs (commercial subsea technology: iXBlue’s offerings encompass inertial navigation sys- PHINS series, OCTANS series, ROVINS and naval iXBlueiXBlue JW Fishers Mfg. Inc.JW Fishers Mfg. Inc.

tems, acoustic positioning, sonar solutions and imaging defense: MARINS series). iXBlue has also developed systems. Its solutions are used in challenging applica- its own acoustic technology, from transducers to power tions, including offshore construction and dredging, ampli? ers, thanks to its expertise in engineering and geophysics and hydrography, ocean science, maritime signal processing. iXBlue delivers the full spectrum vessels, ? shing, and naval defense. of underwater acoustic solutions in order to meet all

At the heart of an iXBlue INS lies a ? ber-optic gyro- the challenges of underwater operations: medium and scope (FOG). A FOG uses optical waves propagating long-range acoustic positioning systems (GAPS), high- in a ? ber optic coil to accurately measure a rotational resolution acoustic imagery and mapping (FLS product rate. line), synthetic LBL positioning systems (RAMSES)

As a FOG is a completely passive device with no and acoustic transponders (OCEANO).

mechanical dithering, sealed cavity or high-voltage

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