AeroTEM Brochure

AEROTEMAEROTEM IS AN INNOVATIVE approach to geophysicalsurveying with its original concept of a concentric coilhelicopter-borne time domain EM system.Aeroquest has developed 3 generations ofAeroTEM systems and has been continuously refiningthe designs as an exploration tool that is optimized toprovide the maximum amount of information on thetarget application. The combination of resolution,conductance discrimination, and geometric informationresults in a system with a wide applicability.Features> Focused footprint> Multiple axis receiver coils, “Z” and “X”> True On-time and Early Off-time measurements> Depth of exploration to 500 metres> High resolution magnetometers Advantages> Highly focused EM footprint provides outstandingdelineation and characterization of subsurfaceconductors> Portable system for quick deployment to almostany geographic location> Rigid platform provides excellent results even inrugged terrain> Target responses are independent of bird heading,and show no herring-bone effect across flight lines> Direct drilling facilitated by high spatial resolutionand dual component recording> Exceptional early off-time performance for thedetection of weakly conductive targets> Full suite of interpretive products and servicesCommon ApplicationsAeroTEM has become, for many, the system of choicefor mapping and exploration programs. To date,AeroTEM has been instrumental in the followingapplications:Advanced Helicopter-borne Time Domain ElectromagneticsCopper Gold VMSNickel-Copper-PGE Silver UraniumDiamonds Oil Sands Mapping Ground WaterAggregatesMappingUXOAEROTEM Advanced Helicopter-borne Time Domain ElectromagneticsAeroquest International7687 Bath Road, Mississauga ON L4T3T1Phone +905 672 9129Toll free +866 693 9129Fax +905 672 7083Email sales@aeroquest.caWeb site www.aeroquest.caCalgary +1 403 450 9621Vancouver +1 604 676 9648Pretoria +27 12 332 3320Perth +61 8 9479 4232The AEROQUEST International Group of CompaniesAeroTEM II AeroTEM III AeroTEM IVBase operating frequency:125/150 Hz(optional 75/90 Hz)75/90 Hz(optional 25/30 Hz)25/30 Hz(optional 75/90 Hz)Transmitter waveform: Bipolar triangular pulse, 20 to 50% duty cycleTransmitter coil: Vertical dipoleReceiver coils: Vertical Z axis plus horizontal X axis (along flight line)Transmitter dipole moment: 40,000 Am2 Up to 230,000 Am2 up to 340,000 Am2Data output:16 on-time channels plus 17 off-time channels for X and Z components available full waveform streaming dataOutput sampling rate: 10 per second - selectableTow cable: 40 m 50 m 60 mSystem Size (diameter): 5 m 10 m 12 mMagnetometers: Geometrics G823A high-sensitive Cesium sensor (.001 nT) sampled @ 10 HzWaveforms and Channel Positioning (90 Hz example)