DE858028C - Method for the analysis of substance, in particular gas mixtures by magnetic means - Google Patents

Method for the analysis of substance, in particular gas mixtures by magnetic means

Info

Publication number
DE858028C
DE858028C DEA2382D DEA0002382D DE858028C DE 858028 C DE858028 C DE 858028C DE A2382 D DEA2382 D DE A2382D DE A0002382 D DEA0002382 D DE A0002382D DE 858028 C DE858028 C DE 858028C
Authority
DE
Germany
Prior art keywords
substance
analysis
gas mixtures
particular gas
magnetic means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEA2382D
Other languages
German (de)
Inventor
Erwin Dr Phil Turowski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Auergesellschaft GmbH
Original Assignee
Auergesellschaft GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Auergesellschaft GmbH filed Critical Auergesellschaft GmbH
Priority to DEA2382D priority Critical patent/DE858028C/en
Application granted granted Critical
Publication of DE858028C publication Critical patent/DE858028C/en
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/74—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables of fluids

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Description

Es ist bereits ein Verfahren zur Stoff-, insbesondere Gasanalyse, vorgeschlagen worden, bei dem das zu untersuchende Stoffgemisch einem Magnetfeld ausgesetzt, seine Suszeptibilität an einer im inhomogenen Teil des Feldes liegenden Stelle durch einen elektrisch geheizten Draht geändert und die dai)ei auftretende Strömung aus der Abkühlung des lleizdrahtes gemessen wird. Zu diesem Zweck ist der Ileizdraht etwa in einer elektrischen Brückenschaltung, z. B. einer Wheatstoneschen Brücke, angeordnet. There is already a method for substance, especially gas analysis, been proposed in which the substance mixture to be examined a magnetic field exposed, its susceptibility to a lying in the inhomogeneous part of the field Place changed by an electrically heated wire and the dai) egg occurring The flow from the cooling of the wire is measured. For this purpose is the Ileizdraht for example in an electrical bridge circuit, e.g. B. a Wheatstone Bridge, arranged.

Gegenstand der Erfindung ist es, im inhomogenen 'I'eil des Magnetfeldes nicht nur einen Heizdraht vorzusehen, sondern zwei, die in den diagonal »egenüberliegenden Zweigen einer elektrischen Brückenanordnung liegen. Dadurch wird, weil beim Auftreten der zu messenden Strömung die Widerstandsänderungen beider Drähte die Brücke gleichinnig verstimmen, an sich schon eine größere Meßeinl>findlichkeit erreicht. Darüber hinaus aber wird die Strömung selbst verstärkt, was ebenfalls eine Vergrößerung der Meßempfindlichkeit ergibt und außerdem die Stabilität des Strömungsvorganges und damit die Konstanz der Meßwerte verbessert. The object of the invention is in the inhomogeneous part of the magnetic field not only to provide one heating wire, but two in the diagonally opposite one Branches of an electrical bridge arrangement lie. This is because when occurring the flow to be measured, the changes in resistance of both wires cross the bridge in the same direction out of tune, in itself a greater sensitivity to measurement has been achieved. About that beyond that, however, the flow itself is intensified, which is also an increase the measurement sensitivity and also the stability of the flow process and thus the constancy of the measured values is improved.

Die Abbildung zeigt ein Ausführungsbeispiel der Erfindung. Das als Wheatstonesche Brücke geschaltete Mcßsystem besteht aus Heizdrähten I und 2. den Vergleichswiderständen 3 und 4, der Stromquelle 5 und dem Anzeigeinstrument 6. Als Vergleichswiderstände 3 und 4 dienen z. B. den lleizdrähten I und 2 gleiche Heizdrähte, die ebenfalls von dem zu untersucheiiden Gasgemisch umgeben sind, sich aber nicht im inhomogenen Magnetfeld befinden. Die Heizdrähte I und 2 liegen im inhomogenen Teil des zwischen den Rlagnetpolen 7 und 8 herrschenden Magnetfeldes. The figure shows an embodiment of the invention. That as Wheatstone bridge switched measuring system consists of heating wires I and 2. den Comparison resistors 3 and 4, the current source 5 and the display instrument 6. As Comparative resistors 3 and 4 are used, for. B. the lead wires I and 2 identical heating wires, which are also surrounded by the gas mixture to be examined, but not are in the inhomogeneous magnetic field. The heating wires I and 2 are inhomogeneous Part of the magnetic field between the Rlagnetpolen 7 and 8.

Claims (1)

PATENTANSPRUCH: Verfahren zur Analyse von Stoff-, insbesondere Gasgemischen, l)ei dem das Stoffgemisch einem Magnetfeld ausgesetzt, seine Suszeptibilität an einer im inhomogenen Teil des Feldes liegenden Stelle geändert und die dabei auftretende Strömung gemessen wird, dadurch gekennzeichnet, daß im inhomogenen Teil des Magnetfeldes zwei Heizdrähte angeordnet sind. die sich in den diagonal gegenüberliegenden Zweigen einer elektrischen Brückenanordnung befinden. PATENT CLAIM: Process for the analysis of substance, in particular gas mixtures, l) when the mixture of substances is exposed to a magnetic field, its susceptibility a position in the inhomogeneous part of the field is changed and the one that occurs Flow is measured, characterized in that in the inhomogeneous part of the magnetic field two heating wires are arranged. those in the diagonally opposite branches an electrical bridge arrangement.
DEA2382D 1941-01-10 1941-01-10 Method for the analysis of substance, in particular gas mixtures by magnetic means Expired DE858028C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA2382D DE858028C (en) 1941-01-10 1941-01-10 Method for the analysis of substance, in particular gas mixtures by magnetic means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA2382D DE858028C (en) 1941-01-10 1941-01-10 Method for the analysis of substance, in particular gas mixtures by magnetic means

Publications (1)

Publication Number Publication Date
DE858028C true DE858028C (en) 1952-12-04

Family

ID=6919877

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA2382D Expired DE858028C (en) 1941-01-10 1941-01-10 Method for the analysis of substance, in particular gas mixtures by magnetic means

Country Status (1)

Country Link
DE (1) DE858028C (en)

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