| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a phenomenon that a magnetic reinforcing plate welded on a closing plate of a magnet housing floats from a plate surface of the closing plate in heat expansion. SOLUTION: A servo type accelerometer is so structured that a pair of magnet housings including a cylinder part and the closing plate for closing one end side of the cylinder part are arranged so as to face opening surfaces of the cylinder part each other, a pendulum is sandwiched and fixed between the opening surfaces, a torque-coil for detecting displacement of a movable part of the pendulum and generating electromagnetic force for pushing back the movable part of the pendulum to a neutral point by a detected signal is provided, and a disc shaped magnetic reinforcing plate is laminated on the plate surface of the closing plate of the magnet housing. The servo type accelerometer is further so structured that an elastic deformable part deformable in a diameter direction of the magnetic reinforcing plate is formed on the magnetic reinforcing plate, and the elastic deformable part is welded on the closing plate.
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