kulmanmittauslaitteisto hissikoneistoon kuuluvassakulmanmittauslaitteisto hissikoneistoon in tahtikoneessa and method moottorinavan station h tahtikoneessa and method moottorinavan station havaitsemiseksi avaitsemiseksi

摘要

In a permanent magnet synchronous motor (21) comprised in an elevator machinery (6), angle measurement is implemented by detecting the position of a rotor pole by means of a detector (1) measuring the magnetic field. The magnetic field generated by the permanent magnets of the rotor (113) is measured at a point close to the rotor circle (113).