Patent · US Expired

Device for measuring paths and/or positions

US6989670B2 · kind B2 · utility

1Cited by

3References

23Claims

0Family size

Assignee

MARQUARDT GMBH · DE

Inventors

Klaus Fahrländer · Spaichingen, DE
Dierk Tille · Feldkirch, AT

Key dates

Filing date	Mar 25, 2004
Grant date	Jan 24, 2006
Priority date	—
Expiry date	Mar 25, 2024

Classification

Technology area (CPC G)Physics
CPC primaryG01D5/145
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A path and/or position measuring device is provided, including a magnet and a sensor for detecting the magnetic field intensity. The magnet and/or the sensor cooperate with a movable element. The magnet is formed such that the magnetic field intensity varies along an axis of the magnet and is not constant. The relative movement between the sensor and the magnet is substantially in the direction of the axis of the magnet. The path and/or the position of the movable element can be determined based on the magnetic field intensity detected by the sensor.

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