e4sciences - Electromagnetic Services
Magnetic field — Measure deviations from natural magnetic field densities caused by ferrous objects. Derivatives & filters — Processing of magnetic field. Vertical gradiometer — Measure the differences with two sensors offset vertically. Infrared imaging — Measure & image the infrared reflectivity & radiation of flora, rocks & oil sludge,. Laser scanning — 3D laser theodolite scanning of tunnels, bridges & structures.
- Photography — Obtain orthorectified normal, oblique & aerial photography
- Ground penetrating radar (GPR) — Acquire, process & interpret the reflectivity of 100MHz electromagnetic waves below the ground surface; velocity estimation
- Underwater & aerial video — Obtain video as independent evidence in underwater or subsurface survey