| 摘要 |
PROBLEM TO BE SOLVED: To provide a noncontact magnetic type measuring device, such as a potentio meter capable of compensating temperature over a wide temperature range (namely, a potentio meter without temperature errors). SOLUTION: This rotary noncontact magnetic type potentiometer 10 comprises, as the major part thereof, a rotating bar 11 allowing angular displacement of the rotating shaft of measured objects, such as a handle and a brake to be transmitted, a permanent magnet 12 fixed to the rotating bar, and two Hall elements 13A and 13B installed where magnetic field strength is different from each other near the permanent magnet. Then, the quotient of output voltages from the Hall elements 13A and 13B are taken as the output signals.
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