Acoustic Devices News

Image courtesy EvoLogics GmbH

MTR100: EvoLogics GmbH

vehicles. They enable retrieving information from various sensors and allow controlling complex processes by seamlessly combining communication with highly accurate positioning. Moreover, EvoLogics caters to the needs of scientists, developers and commercial customers with a series of underwater acoustic devices and software tools that offer an open development and testing framework, providing endless opportunities for new implementations.S2C systems have been carefully designed for operations in harsh underwater environments and enhanced with special algorithms for signal processing and data management

The Chinese White Dolphin (Sousa Chinensis, also referred to as the Indo-Pacific humpback dolphin) was classed as vulnerable on the IUCN Red List copy. Photo courtesy OceanAlpha

Unmanned Vessels Help to Protect Threatened Marine Lives in China

of Sciences.Fishing boats used to be the primary tool for Chinese white dolphin study. To avoid noise interference generated by the traditional crafts, the professionals usually tow the sonars by ropes up to 80 meters or even longer, which is challenging to operate and dangerous for the towed acoustic devices.The surveillance and rescue vessel (USV) is used for daily patrolling along the set route. Photo courtesy OceanAlphaThe OceanAlpha M40P USV is electrically driven, generating little noise, which won't scare the dolphin and provide a quiet working condition for acoustic equipment. Thus, the

SEA-KIT to Expand Fleet with New 12m USV

is currently leading a Clean Maritime Demonstration Competition funded project to demonstrate zero-emission maritime operations using a hydrogen fuel cell manufactured by Bramble Energy. The silent running and low vibration that can be achieved with hydrogen propulsion enable highly sensitive acoustic devices and sensors to monitor underwater environments more efficiently and with minimal disturbance, a huge benefit for activities such as marine mammal observation, the company said.Ben Simpson said: “Interest in SEA-KIT’s designs is increasing now that we have vessels operating on commercial

The PingGuin. Image courtesy EvoLogics

MTR100: EvoLogics in Focus

vehicles. They enable retrieving information from various sensors and allow controlling complex processes by seamlessly combining communication with highly accurate positioning. Moreover, EvoLogics caters to the needs of scientists, developers and commercial customers with a series of underwater acoustic devices and software tools that offer an open development and testing framework, providing endless opportunities for new implementations.S2C systems have been designed for operations in harsh underwater environments and enhanced with special algorithms for signal processing and data management. The

EvoLogics' Sonobot, an autonomous USV for bathymetric surveys. Photo: EvoLogics

MTR100: EvoLogics GmbH

vehicles. They enable retrieving information from various sensors and allow to control complex processes by seamlessly combining communication with highly accurate positioning. Moreover, EvoLogics caters to the needs of scientists, developers and commercial customers with a series of underwater acoustic devices and software tools that offer an open development and testing framework, providing endless opportunities for new implementations. S2C systems have been carefully designed for operations in harsh underwater environments and enhanced with special algorithms for signal processing and data management

Photo: Silicon Sensing Systems Ltd

Silicon Sensing Expands MEMS Foundry in Japan

on the strengths of PinPoint Silicon Sensing has developed its thin film sputtering material and process technology to an advanced level.  Silicon Sensing is supplying its PZT film to a global customer base for use in many varied MEMS devices such as mirrors, inkjet printhead nozzles and acoustic devices.  In many cases Silicon Sensing is an enabler for the transition from use of bulk piezo-electric to thin film, with the associated benefits of economy, size and power consumption.Silicon Sensing SystemsSilicon Sensing Systems Ltd is an inertial sensors and systems engineering company, jointly

Image: EvoLogics

MTR100: EvoLogics

.    They enable retrieving information from various sensors and allow for control of complex processes by seamlessly combining communication with accurate positioning. Moreover, EvoLogics caters to the needs of scientists, developers and commercial customers with a series of underwater acoustic devices and software tools that offer an open development and testing framework, providing endless opportunities for new implementations. S2C systems have been carefully designed for operations in harsh underwater environments and enhanced with special algorithms for signal processing and data management

SIO's pinger on bottom in Caymans, acoustic receiver is used from boat (bottom) with remote hydrophone (top)  (Photo: JW Fishers)

Acoustic Devices Aid Researchers and Marine Scientists

help to solve this problem. These acoustic beacons are attached to an underwater site or instrument package and transmit a sonar signal. A gun-like device, either carried by a diver or deployed from a boat, detects the signal and guides the operator directly to the beacon.   Today these acoustic devices are being employed by many marine scientists and researchers to keep track of expensive oceanographic equipment allowing instruments to be quickly relocated and retrieved.   Scripps Institution of Oceanography (SIO) is one of the oldest and largest facilities in the world for ocean science

Maritime Surveillance in the New Millennium

custom alerting capabilities delivering alarms and threat alerts via email, Short Message Service (SMS), Multi-Media Messaging Service (MMS) and Simple Network Management Protocol (SNMP) to assist operators working with mobile devices. They have incorporated alerting systems such as Long Range Acoustic Devices (LRAD) and AIS with their Radar, Camera and Sonar surveillance systems. With the use of AIS and LRAD, the operator can provide direct notification or warning to the target. The SSR Composite Tracker correlates target information from multiple sensors providing an accurate track picture while

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