Bartington Instruments Device / Instrument
Grad-13 digital three-axis gradiometer
Digital three-axis gradiometer for land or underwater (200m) surveys, UXO detection and pipe and cable location.
Description
Grad-13 is a digital three-axis magnetic gradiometer providing high-resolution vector measurements on land or in water. It can be used on its own or in multi-sensor arrays. A submersible version rated to 200m (Grad-13S) is offered alongside the land version (Grad-13L), and Bartington lists it for UXO-related marine defence work.
Key features
- Baselines from 500mm to 1000mm
- Land and submersible (200m) versions
- Measuring range ±70 or ±100μT
- Integral three-axis accelerometer (±2g)
- Gradient noise <25pTrms/√Hz/m at 1Hz (500mm baseline)
Applications
- UXO detection by surface or downhole surveys
- Pipe and cable location
- Archaeology and mineral exploration
Specifications
| Baseline | 500mm to 1000mm |
|---|---|
| Depth rating | 200m (submersible version) |
| Measuring range | ±70 or ±100μT |
| Accelerometer | ±2g |
| Gradient noise | <25pTrms/√Hz/m at 1Hz (500mm baseline) |
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