| 摘要 |
PROBLEM TO BE SOLVED: To continuously variably detect output torque in a mounted state irrespective of a motor structure. SOLUTION: In a motor valve actuator for transmitting a motive force from a motor 1 through a worm reduction mechanism 2 to the valve shaft of a valve, the worm shaft 6 of the worm reduction mechanism 2 is provided with a differential transformer 9 for continuously detecting a thrust direction changing positionΔL and taking this out as a voltage signal Vx. Thus, an optional point is used for system control, and also used for maintenance by continuous monitoring.
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