Patent · US Expired

Device for determining the concentration of substances having paramagnetic properties

US4763509A · kind A · utility

2Cited by

4References

6Claims

0Family size

Assignee

DRAGERWERK AKTIEGESELLSCHAFT · DE

Inventors

Scato Albarda · Groß Schenkenberg, DE
Alfred Eder · Friedberg, DE

Key dates

Filing date	Dec 17, 1986
Grant date	Aug 16, 1988
Priority date	—
Expiry date	Dec 17, 2006

Classification

Technology area (CPC G)Physics
CPC primaryG01N27/74
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device for the determination of the concentration of substances with paramagnetic properties, particularly oxygen, in substance mixtures comprises a cell assembly and devices to produce a magnetic field as well as to measure changes in the magnetic induction. Great mechanical accuracy and stability in the measuring of a change in the magnetic induction uninfluenced by external disturbing fields or by mechanical changes due to external temperature fluctuations or vibrations with a coil assembly for producing a magnetic field and for measuring the induction signal comprising self-contained coil carriers, which, surrounding a cell assembly and are arranged respectively at a distance from the axis of rotation of the cell assembly.

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