| 摘要 |
PURPOSE:To enable to precisely measure an accurate electric amount in a high sensitivity by winding a detecting winding on a rotor plate in which electric iron plates are laminated on the outer periphery of a rotary unit, and arranging a detector for measuring the magnetic flux due to the detecting winding on a stationary unit opposed to the rotor plate, thereby preventing the residual magnetization. CONSTITUTION:Detecting windings 7-9 are secured by containing a U-shaped rotor plate 17, in which electric iron plates are laminated, in a recess 16a formed on the outer periphery of a rotary unit 16, inserting the detecting windings 7, 8 or 9 in the slots 17a formed on both legs and clamping them by a wedge 18. The plate 17 retains the coil end of the detecting windings by holding it via a retainer 19, clamping it via rivets 20, and securing a supporting plate 21 integral with the retainer 19 via a bolt 22. On the other hand, a U-shaped stator plate 23, in which electric iron plates are laminated, is secured oppositely to the plate 17 at the stator side, a magnetic circuit is formed with a pair with the plate 17, a detector coil 24 is wound on the plate 23, thereby forming detectors 12-14. |
