Patent · US Active

System for detecting mechanical disconnect of a sensor from a controlled element

US10422659B2 · kind B2 · utility

2Cited by
11References
18Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 23, 2015
Grant dateSep 24, 2019
Priority date—
Expiry dateAug 11, 2035

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01D5/2291
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A system for detecting mechanical failure of a connection between a variable differential transformer and a controlled element. The sensor system includes a variable differential transformer with a housing encapsulating a first coil, a bore in the housing, wherein the bore is adjacent to the first coil, a core disposed in the bore, a shaft connectible between the core, at a first end, and the controlled element, at a second end, and a biasing element connected to the shaft. Responsive to a break in the shaft, the biasing element moves the core to an out-of-range position detectable by at least the first coil.

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