Patent · US Expired

Radial displacement detector device for a magnetic bearing

US4114960A · kind A · utility

21Cited by
9References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 31, 1977
Grant dateSep 19, 1978
Priority date
Expiry dateJan 31, 1997

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01D5/2216
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A device for detecting and correcting a radial oscillations of a rotor, particularly a rotor in a magnetic suspension, for the purposes of creating a restoring force to hold the rotor centrally of the stator, wherein several pairs of radial displacement detectors are coupled together and are relatively spaced such that the signals emanating from diametrically opposite detectors of each pair are cancelled out and the signals emanating from adjacent detectors of each pair are averaged to eliminate the effects of variations in the radius of the rotor.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.