Patent · US Expired

Ellipticity control system for angular displacement sensor

US4079630A · kind A · utility

10Cited by
2References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 22, 1976
Grant dateMar 21, 1978
Priority date—
Expiry dateNov 22, 1996

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01C19/5691
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An ellipticity control system for controlling the elliptical deviation of the vibratory element of a displacement sensor. The apparatus incorporates a plurality of drive electrodes, at least six in number, mounted concentrically along the longitudinal axis of the elongated vibratory element. Each drive electrode is formed in pairs oriented along separate axes. A pair of X-axis pickoffs and a pair of Y-axis pickoffs axially spaced from the drive electrodes are also mounted concentrically of the vibratory element to sense the deviation of the vibratory element from null and to provide control signals by way of circuit means to the drive electrodes.

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