The Variations Of Temperature Influencing The Magnetic Permeability (epo) Patents (Class 374/E7.04)
  • Device for contactless measurement of rotor temperatures
    Patent number: 7575372
    Abstract: A device for contactless measurement of a rotor temperature includes a magnet supported on the rotor, electric coils which are arranged at the stator with which the rotor cooperates, and an electronic unit for measuring a voltage induced in the coil and including a component that converts the measured voltage into a temperature-proportional signal.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: August 18, 2009
    Assignee: Pfeiffer Vacuum GmbH
    Inventor: Armin Conrad