Introduction
The magnetic gradient sensor consists of two 3-axial magnetic sensors that are fixed on the same stable support beam at short distance. It also includes a data acquisition circuit, high temperature memory module, communication circuit, etc. This device uses two high-performance magnetic sensors with a certain distance to form a three-component horizontal gradient measurement.
Application
Geophysical exploration, underwater magnetic detection, buried object detection, urban underground pipeline positioning, target detection and positioning, etc.
Two three-component fluxgate sensors are installed on the horizontal base in parallel. The distance between the fluxgate sensors serves as the baseline distance of the gradient sensor. After 6-channel 24-bit AD conversion, the test data is stored in the internal memory module, and can then be uploaded synchronously through RS485 interface or CAN bus.
Specifications
Item | Index | Parameters |
Magnetic Field Performance Index | Axial | Single Axial Sensor/Three Axis Sensor |
Baseline Distance Between Two Sensors | 500mm/750mm/1000mm | |
Single Magnetic Sensor Measuring Range | -70μT~70μT/-100μT~100μT | |
Maximum Gradient | 140μT /200μT | |
AD Conversion | 24bit | |
Noise | ≤20pTrms/√Hz@1Hz | |
Display Resolution | 0.1nT | |
Electrical Parameters | Input Voltage | 5V/12V/24V |
Power | ≤4W | |
Communication Interface | RS485/CAN Bus | |
Data Storage Time | ≥7 Days | |
Use Environment | Protection Level | IP68 |
Operating Temperature | -25℃~85℃ |
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