| 摘要 |
An inductive sensor (11) with an electric coil (13) acts together with a rotating, magnetically conductive component to emit electric signals. In order to permit simple and economical handling and especially positioning during the injection process, the pole pin (14) has two drillings (25, 26). Two pins on the injection tool project into these two drillings (25, 26), with the extension (27) of the pole pin (14) bearing on the injection moulding tool between the two pins. It is thus possible for the pre-manufactured structural unit essentially comprising the coil body (12), the coil (13), the permanent magnet (16) and the pole pin (14) to be positioned and handled both before, during and after the injection process. After the injection moulding tool has been removed from the pole pin (14), a flush fit is obtained between the extension (27) and the outer wall of the casing of the rotation speed sensor (10).
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