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Chelsea Technologies Group Ltd


Sensors & systems for freshwater and oceanographic monitoring Chelsea Technologies Group manufactures a range of innovative multi-parameter sensors & systems for monitoring the physical, optical & biological oceanographic & fresh water environments. Sensors are available for in-situ chlorophyll & algae class studies, dye tracing, oil spill monitoring, airport apron pollution runoff studies, water abstraction management and effluent detection as well as primary productivity studies, bloom detection, toxicant detection within domestic water supplies and early detection of contamination events in potable and pre-treated water protection. With nearly 50 years' experience in sensors and systems design, Chelsea's products are used in a diverse range of applications in the marine, environmental, defence, homeland security, industrial process control and life science markets. Contact Justin Dunning (sales@chelsea.co.uk, Tel: +44(0)20 8481 9000) today and let me him help you with your particular application.


Mr Justin Dunning
55 Central Avenue

West Molesey

Chelsea receives export order for Acoustic Echo Repeater System

Chelsea Technologies Group announces a further export order for the Echo Repeater Acoustics Source (ERAS) system. ERAS is a compact and versatile acoustic system for the performance evaluation of a wide range of active and passive sonars. It will be used by the customer as a hand held, portable system from small vessels in remote locations.

ERAS consists of a low / medium frequency acoustic source with an echo repeating capability for at sea, customer acceptance of a ship-borne, active and passive sonar suits. Whilst its frequency range of operation is specific to these target sonars it is easily tailored to the specific needs of any user. When compared to alternative systems, ERAS is extremely attractive to a user due to its relatively low cost, small size and light weight. It can be deployed easily from a small boat, if required, but still offers a very sophisticated suite of signal source and echo repeating capabilities.

ERAS has three modes of operation: Echo Repeat, Source and Sequence, and Transpond. Each is controlled by an easy-to-use Graphical User Interface producing calibrated transmissions with up to 24 tones simultaneously. ERAS provides a highly versatile and flexible sonar test system that is configured by simple mouse or keyboard selections. In addition to instant configuration changes ERAS allows desktop set-up of complete trials' programs in advance hence avoiding potential errors in signal definition during calibration trials.

Chelsea has ERAS systems operating with customers in Europe, USA and Asia.

For more information, please contact Ellen Keegan, Communications Manager, Chelsea Technologies Group, Tel +44 (0)20 8481 9019.

For further information please email Chelsea Technologies Group Ltd

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