McPHAR’s helicopter-borne frequency-domain electromagnetic survey system is integrated around the HUMMINGBIRD EM sensor, which is available in a 5-frequency configuration, see the table below. The HUMMINGBIRD EM sensor, which is the heart of this system, can be simply described as a multi-frequency, multi-coil electromagnetic system, which measures the in-phase and quadrature responses from a number of coil-pairs installed in a tubular bird, towed beneath a helicopter. All components of the HUMMINGBIRD are digitally controlled, in fact, HUMMINGBIRD is 100% digital from front to back.
Data is telemetered on a lightweight serial cable to the data acquisition console onboard the helicopter, where it is displayed on a LCD colour screen and recorded on hard disk.
Pilot guidance and DGPS navigation systems are integrated into the package together with a gammaray spectrometer (optional).
A high-sensitivity cesium vapour magnetometer is installed inside the HUMMINGBIRD sensor airfoil.
Other flight control instruments include radar and barometric altimeters and a digital colour video imaging system.
|HUMMINGBIRD EM system and a Bell 206 L Long Ranger helicopter in Romania.|
|HUMMINGBIRD EM system and a Eurocopter SA-315 LAMA helicopter in Venezuela.||HUMMINGBIRD EM system and a Eurocopter AS350B2 helicopter in Greenland.|