Multicore cable inspection method and multicore cable inspection device

A multicore cable inspection device that specifies a correspondence relationship among ends of insulated wires exposed at both ends of a multicore cable, the multicore cable being obtained by bundling n insulated wires where n is a natural integer of 3 or more and m is a natural number of 2 or more and n−1 or less, the device comprising:

• a first inspection signal input means of inputting, by capacitive coupling, an inspection signal to an end of a first insulated wire to be inspected among the ends of the insulated wires exposed at one end of the multicore cable;
• a second inspection signal input means of inputting, by the capacitive coupling, each of 1st to m-th signals, each of which has a phase different from that of the inspection signal, to the ends of the m insulated wires other than the first insulated wire among the ends of the insulated wires exposed at the one end of the multicore cable;
• and
• an arithmetic unit of measuring a voltage of an output signal outputted by the capacitive coupling from each end of the insulated wires exposed at the other end of the multicore cable, and specifying an other-side end of the first insulated wire based on the measured voltage,
• wherein each of the inspection signal and the 1st to m-th signals has the same frequency mutually, and
• an amplitude of a signal obtained by adding the inspection signal and all the signals of the 1st to m-th signals are smaller than an amplitude of the inspection signal.