Airmar Provides Marine Transducers for USV & UUV Surveying

Airmar Technology Corporation is a leading developer of ultrasonic and acoustic sensing solutions, and the company specialises in state-of-the-art marine transducers that push the boundaries of ultrasonic technology. Airmar provides a full line of transducers for unmanned surface vehicles (USVs) and unmanned underwater vehicles/autonomous underwater vehicles (UUVs/AUVs), unlocking superior survey capabilities at great depths for hydrographic and scientific applications.

Below is a selection of Airmar’s off-the-shelf single- and multi-beam marine transducers. For more specialized applications, the company also provides custom marine transducer development to meet your frequency and housing requirements.

The M190 is an underwater ultrasonic transducer for deep sea surveying and sub-bottom profiling applications, with efficient low-ringing arrays providing excellent performance and detail. It is constructed with a stainless-steel internal chassis for reduced impact damage and seamless SEALCAST urethane housing for long operational life.

The M190 deep water ultrasonic transducer can be mounted as an in-hull installation in a fiberglass hull, or adapted for use as a portable-mount. Stuffing tubes are available to form a watertight conduit for cable routing, in a variety of materials to match all hull types. 4 low-frequency options are available, from 12 kHz to 33 kHz.

The M194 is a Chirp-ready 200 kHz underwater transducer with excellent sensitivity for accurate shallow-water, river, harbor and estuary surveying. It has minimal side lobes for concentrated energy on target, providing excellent definition. It can also be “chirped” with a long pulse over a wide-frequency band, and users with adjustable-frequency echosounders can regulate the operating frequency and tailor the beamwidth to specific survey conditions.

The M563 is a high-sensitivity broadband marine transducer for shallow-water and coastal surveying that delivers excellent broadband performance throughout low-frequency (25-45 kHz) and high-frequency (3 options) bands. It is capable of crisp waveforms at discrete frequencies, as well as broadband Chirp or coded waveforms.

The assembly can be mounted on a towed body, directly to a wood, steel, or fiberglass hull, or as an in-hull in a fiberglass hull for precise echo sounding. The seamless SEALCAST urethane housing provides long underwater operational life.

The M74 is a low-frequency (12 kHz or 15 kHz options) marine transducer with ceramic arrays that provide exceptional deep-water performance for survey echosounding and detailed sub-bottom profiling. It offers Chirp capability with a longer pulse over a wide-frequency band.

Impedance can be customized to customer specifications using a matching transformer, and a bulkhead or in-line connector can be provided according to requirements.

The SS538 is a Chirp-ready 200 kHz stainless steel underwater transducer with excellent sensitivity for accurate shallow-water, river, harbor and estuary surveying. It can be chirped with a long pulse over a wide-frequency band, and users with adjustable-frequency echosounders can regulate the operating frequency and tailor the beamwidth to specific survey conditions. Frequency options include 80-130 kHz, 130-210 kHz and 200 kHz.

The SS549 200 kHz survey transducer is designed for shallow water, river and coastal survey applications with high-frequency and narrow beamwidth requirements. The narrow 3° beam and low side lobes result in high precision survey.

With a robust stainless-steel housing, the assembly can be easily attached to portable apparatus using the threaded stem.

The SS134 small side-scan transducer with 0.5°x48° beamwidth has been designed to meet the needs of oceanographic applications, such as surveying and detailed, high-resolution bottom mapping. High-frequency 340 kHz and 500 kHz versions are available, with custom configurations available upon request.

The SS82 is a large 200 kHz side-scan transducer with 0.5°x48° beamwidth for demanding oceanographic applications, such as detailed, high-resolution surveying and bottom mapping. A dual-beam version is available and custom configurations can be provided upon request.