| 摘要 |
PROBLEM TO BE SOLVED: To provide a detecting device and a program improving accuracy in detection of a magnetic body which does not change the position with respect to the detection device. SOLUTION: The detection device is equipped with: three or more detecting coils to which electric signals are induced by alternating magnetic field and magnetization reversal, respectively, upon generation of the alternating magnetic field generating the magnetization reversal at a magnetic body where the magnetization reversal occurs when a magnetic field having an intensity larger than a predetermined intensity for each of positive and negative magnetism acts upon the magnetic body; a switching means for switching the connection among the three or more detecting coils; a control means for controlling the switching means so as to connect in series two sets of the detecting coils consisting of the same number of the detecting coils such that AC currents induced by the alternating magnetic field are in opposite phase to each other; and a detecting means for detecting the magnetization reversal of the magnetic body based on the electric signals passing through a series circuit in which the two sets of the detecting coils are connected in series. COPYRIGHT: (C)2011,JPO&INPIT |
