Bartington Instruments - Magnetometers for Degaussing Ranges, Surveillance Systems, UXO and Magnetic Anomaly Detection

Bartington Instruments is a world-class manufacturer of high-precision, low-noise fluxgate magnetic sensors for naval defence applications. Our magnetometers, magnetic gradiometers and data acquisition units are widely used in magnetic signature and degaussing ranges, in surveillance and for magnetic anomaly detection. Our products have a world-leading reputation for performance, reliability and durability, and are in use globally with many naval armed forces.

Magnetic range data acquisition system

The DAS1 is a multi-input data acquisition system, forming a full magnetic signature measurement facility when combined with our range of magnetometers. The standard product includes a powerful data processing unit and a-d converters, but the exact system configuration can to be adapted to meet customer requirements.

Key features:

• Sensor capacity can be expanded up to 160 three-axis sensors
• Supports magnetometers and non-magnetic sensor types
• Provides power to connected sensors
• LabView® based software

Typical applications:

• Magnetic and multi-influence ranges
• Control unit for harbour protection systems

Marine magnetometer for magnetic ranges

The Mag-03RC is a submersible three-axis magnetometer which gives excellent measurement performance, with high reliability and low maintenance.

Key features include:

• Low noise specification less than 20pTrms/√Hz at 1Hz
• Long cable drive capability up to 1000m
• Built-in test function
• Underwater mateable connector option

Typical applications:

• Fixed installation magnetic ranges of all types (e.g. degaussing, harbour entrance, stray field)
• Harbour protection and surveillance systems
• Installations requiring long cable lengths

Low-power magnetometer for battery powered systems

The Mag648S is a submersible, three-axis magnetometer with very low power consumption and low noise specification in a small enclosure. It offers excellent sensitivity where limited power is available, e.g. in battery-operated systems.

Key features:

• Low power less than 15mW
• Low noise specification less than 10pTrms/√Hz at 1Hz
• Submersible to 2000m
• Small footprint package

Typical applications:

• Portable magnetic ranges or harbour surveillance systems
• Battery powered systems and ROVs

Low noise magnetometer for underwater applications

The Mag-03MSS version of the world-renowned Mag-03 three-axis magnetometer offers very low noise levels and excellent bandwidth in a small, compact enclosure.

Key features:

• Very low noise specification less 6pTrms/√Hz at 1Hz
• Measurement range options from 70uT to 1mT
• Frequency response DC to 3kHz
• Submersible to 2000m

Typical applications:

• Suitable for both portable and fixed installation magnetic ranges and harbour protection
• ROV mounting

Magnetic range for mine countermeasures equipment

The Mag-03 three-axis sensors can be combined with the Bartington Instruments Spectramag-6 data acquisition system to form a small-scale, cost effective magnetic measurement range. This system can be used for checking and recording the magnetic parameters of, for example, items onboard minesweepers or naval diving apparatus.

Key features:

• Requires just two three-axis fluxgate sensors
• Measures magnetic characteristics in XYZ axes
• Records result on a PC for archiving purposes

Unexploded ordnance (uxo) and magnetic anomaly detection

The Grad-03-500M three-axis gradiometer can be used for underwater UXO, pipe or cable detection, when mounted on a carrying platform, e.g. an ROV. The magnetic gradiometer provides more information than a scalar magnetometer, giving total magnetic field as well as gradient in three axes. This can be used for target location in shallow water.

The Grad-03ACU Analog Correction Unit can be used with the gradiometer, providing a visual readout, and enabling fine-tuning of axial alignment.

Key features:

• Enables determination of total field, magnetic gradient and heading
• 100uT dynamic range; 1nT resolution (with Grad-03ACU)
• Submersible to 5000m
• Data logger option is available