| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To dispense with regulation for a resonance frequency between coils, without lowering coil detection performance. <P>SOLUTION: The coils A, B of the same resonance frequency are used to detect a position, those are mounted diagonally, a coil of a resonance frequency different from that of the two coils is mounted right-angledly to the two coils to detect a rotation angle. The coil C for detecting the rotation angle is brought into a condition not resonated (open) temporarily by push-down of a button, a condition where the rotation angle is detected unstably in the push-down of the button is allowed since an action for rotating a pack device and an action for the push-down of the button are not executed at the same time in a usual operation. The center position of the two coils for the position detection is able to be calculated by calculating the center of gravity in each thereof when the coils are mounted basically in a point-symmetric position, so as to enhance precision. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
