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Landmine Detection - Sensing Application

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Landmines present a continuing threat to many civilian populations around the world years after conflict may have ended in a particular land.

Landmines would be ineffective weapons if they were easy to detect or if their presence was clearly marked. Therefore they often lie undetected and forgotten in the soil, years after a conflict has ceased, until they are usually tragically disturbed by civilians often children.

Additional complexity is caused by the variety of landmines which have been produced and planted in various conflicts. Some, of almost all plastic construction defeat metal detection, some are buried higher or lower in the soil while others feature varieties of detonation method or fusing which can foil mechanical destruction techniques.

The main problem with plastic landmines is that many contain very little metal, making it necessary to use extremely sensitive metal detectors, which then also detect all manner of scrap metallic objects and battlefield debris. The aim of multi-sensor systems is largely to reduce this false alarm rate and make detection and clearance faster and safer.

Despite various worthy conventions on their continuing use, landmines have been laid in conflicts around the world to such an extent that they continue to deny civilian populations access to their land, continue to cripple and kill innocent children and their clearance remains a slow, predominantly manual and costly operation around the world.

Sensatech is working on a project funded by QinetiQ to try to detect and possibly identify landmines within a soil without contacting or transmitting any pressure to the soil and without causing any type of landmine to be detonated.

Sensatech are approaching this task using arrays of capacitive sensors and non-contact 3d tomography techniques to try to map the soil under a sensor and detect objects embedded within the soil under the surface.

Assuming that sufficient definition and resolution could be obtained to the required depth within the soil, embedded objects could be compared to a database of known landmine types and a fit made if objects found in the soil match a known landmine type.

Additionally, it may be possible using capacitive and electric field techniques to try to identify the chemical composition of various elements at a range. This could allow the detection of materials within landmines such as various plastics or explosives.

Landmine detection is an ongoing project at Sensatech, where development is focusing on various modules that would be required for an eventual system. A functional system would involve hardware, arrays and processing electronics, interpretive software for fast data analysis and comparison techniques to resolve data and match objects. Significant testing would be required at later stages to confirm simulated performance on the variety of soil and environment conditions where landmine clearance is being undertaken.

A humanitarian landmine detector for field use is being developed in collaroration with QinetiQ.

Landmines come in many shapes and sizes.
Selection of Anti-personnel landmines
Call now with your enquiry.

Pages in the Applications section:
3d shapes - detection and or measurement of
Collision avoidance - Proximity measurement
Electro-cardiography - Non contact
Environment - Hazardous
Environment - High temperature
Human anatomy - Foot gauge
Human anatomy - Light switch
Invasive, non-contact 3d mapping
Landmine detection
Liquid level detection
Micro machines
Moisture measurement
Powder or granule level detection
Proximity detection - Non contact
Proximity measurement - Analogue
Reversing Sensor
Robotic control and protection
Small targets at high speeds
Solder Wave height
Weighing cell

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