Posted in | Magnetometers

Tridirectional Magnetometer / Gradiometer from Gem Systems

The Tri-Directional Helicopter Gradiometer was the first 4 sensor gradiometer developed in the world.

This special gradiometer is a magnetic measuring system deployed at 30m below the helicopter. It consists of a three-armed towed bird configured with 4 sensors for calculation of Tri-Directional magnetic gradients. A special configuration of sensors is used to achieve vertical gradient spacing of 3m, and horizontal across and along track gradient separations of 3.46 and 3.76, respectively.

The sensors measure three “true” gradients based on simultaneous measurements from each of 4 sensors. Additional components include GPS (<1.5m or higher resolution) for accurate positioning of the bird during flight.

Other Equipment

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.