| 摘要 |
PURPOSE:To measure force accurately, by measuring voltage generated in the hole element arranged in close vicinity to the coil placed in a magnetic field. CONSTITUTION:A dish 6 having an article (not shown in the drawing) to be measured placed thereon is suspended from one end of the rod 2 supported by a fulcrum 4 and a part 14 to be detected is provided to the other end thereof so as to be opposed to an approximate switch 15. A bobbin 9 having a coil 10 therearound is connected to the rod 2 in the side of the part 14 to be detected and constitutes a load measuring actuator along with a permanent magnet 11, a yoke 12 and a hole element 20. At the time of measurement, the article to be measured is placed on the dish 6 and a current is flowed to the coil 10, in such a state that the approximate switch 15 is opposed to the part 14 to be detected, to take balance so as to make the rod 2 horizontal. The voltage of the hole element 20 at this time is measured to calculate the force acting on the coil 10. By this method, force can be measured accurately.
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