Method and apparatus for a rigidly joined together and floating bucking and receiver coil assembly for use in airborne electromagnetic survey systems

摘要

A housing and bucking coil and receiving coil system for a helicopter towed concentric coil electromagnetic survey system that reduces micro phonic and primary field noise. The device includes an isolation housing, a bucking coil and receiving coil assembly with structural members to rigidly join the two coils together and a suspension system to suspend the joined bucking and receiving coils, in a floating manner, by bungee cords or similar non-metallic vibration dampening devices. A housing with dimensions large enough to enclose the suspended bucking and receiving coil assembly that is lined with acoustic and other vibration dampening material A method for suspending the joined bucking and receiving coil assembly that isolates the assembly from vibration and at the same time keeps the coil assembly from twisting and turning in angular planes from the plane of the transmitter, wherein the acceptable minor motions the coil assembly will be allowed to make by the suspension system are up-down, back-forward and left-right motions.