| 摘要 |
PROBLEM TO BE SOLVED: To provide an anemometer capable of improving the resolution by multiplying the number of wind speed pulses. SOLUTION: A rotation output generator is mounted to obtain a rotation signal of wind speed in accompany with the rotation of a propeller, by mounting a hole element near a rotor having one or a plurality of rotated magnetic poles. The rotation signals from the rotation output generator are compared by a plurality of comparators on the basis of different threshold values, and each self-pulse is formed by the plurality of pulse generators on the basis of self-output from the plurality of comparators. By applying the self-pulse to a logic circuit, the rotation signal of wind speed can be multiplied. COPYRIGHT: (C)2004,JPO&NCIPI
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