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Armature position sensor for a relay
United States Patent Number: 5,483,214
  • G. Stephen Perreira, Carpinteria, CA
  • Richard L. Kutin, Camarillo, CA
  • Lanny V. Griffin, Davis, CA
Publication Date
A sensor for use with high-power solenoid-actuated relays, and for detecting and signalling relay armature position and hence the actuation state of the relay. The sensor is external to a sealed chamber in which the relay contacts and armature system are positioned, and includes a permanent magnet, the flux path of which includes the relay armature and base. Armature movement to close the relay alters the flux path to operate a reed switch adjacent the magnet, and the condition of the reed switch signals the unactuated or actuated state of the relay.
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Citation Information
G. Stephen Perreira, Richard L. Kutin and Lanny V. Griffin. "Armature position sensor for a relay" United States Patent Number: 5,483,214 (1996)
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