Survey System of the exploration thereof, and probing methods

To be probed object 5, to be search device 20 having a power receiving circuit 21 in the non-contact power feeding of a magnetic resonance method is provided, power measurement for measuring the power transmission circuit 11 in the non-contact power feeding of a magnetic field resonance method, the power consumption of the power transmission circuit 11 moving the probe 10 having the circuit 12 along the ground surface, to probe the search object 20 based on a change in the power consumption of the power transmission circuit 11. Probe 10 comprises an information processing apparatus 14, the information processing apparatus 14 outputs the information indicating the change in power consumption. The information processing apparatus 14 stores the power consumption at no load of the serial transmission circuit 11, and outputs information indicating the difference between the power consumption and the power consumption at no load. The information processing apparatus 14, and power consumption of the power transmission circuit 11, and stores the correspondence between the distance between the transmitting circuit 11 receiving circuit, the distance from the probe 10 corresponding to the power consumption measured until the probe 20 get to the output.