DE10005491B4 - Device for inductively measuring the electrical conductivity of a liquid - Google Patents

Device for inductively measuring the electrical conductivity of a liquid Download PDF

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Publication number
DE10005491B4
DE10005491B4 DE2000105491 DE10005491A DE10005491B4 DE 10005491 B4 DE10005491 B4 DE 10005491B4 DE 2000105491 DE2000105491 DE 2000105491 DE 10005491 A DE10005491 A DE 10005491A DE 10005491 B4 DE10005491 B4 DE 10005491B4
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conductor loop
liquid
electrical conductivity
cores
branches
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DE2000105491
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DE10005491A1 (en
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Peter Dr. Diekmann
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GO SYSTEMELEKTRONIK GmbH
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GO SYSTEMELEKTRONIK GmbH
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/023Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance where the material is placed in the field of a coil

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
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  • General Health & Medical Sciences (AREA)
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  • Coils Or Transformers For Communication (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

Vorrichtung zum induktiven Messen der elektrischen Leitfähigkeit einer Flüssigkeit, mit wenigstens zwei mit je einer Wicklung versehenen Ringkernen und einer die Flüssigkeit führenden, aus einem Zufluss (A), zwei durch die Ringkerne geführten Zweigen und einem Abfluss (B) bestehenden Leiterschleife, dadurch gekennzeichnet, dass die Leiterschleife in Form einer 8 ausgebildet ist und jeder der beiden einander kreuzenden Zweige der Leiterschleife durch beide Ringkerne geführt ist.contraption for inductively measuring the electrical conductivity of a liquid, with at least two provided with one winding ring cores and one the liquid leading, from a tributary (A), two branches led through the toroidal cores and a drain (B) existing conductor loop, characterized that the conductor loop is in the form of an 8 and each of the two crossing branches of the conductor loop through both Toroidal cores guided is.

Figure 00000001
Figure 00000001

Description

Die Erfindung betrifft eine Vorrichtung zum induktiven Messen der elektrischen Leitfähigkeit einer Flüssigkeit mit wenigstens zwei mit je einer Wicklung versehenen Ringkernen und einer die Flüssigkeit führenden, aus einem Zufluss, zwei durch die Ringkerne geführten Zweigen und einem Abfluss bestehenden Leiterschleife.The The invention relates to a device for inductive measuring of the electrical conductivity a liquid with at least two ring cores provided with one winding each and one the liquid leading, from a tributary, two branches led by the toroidal cores and a drain existing conductor loop.

Eine derartige Anordnung ist aus der US 5,959,455 bekannt.Such an arrangement is known from US 5,959,455 known.

Bei derartigen Vorrichtungen ist jeweils ein Zweig der die Flüssigkeit führenden Leiterschleife durch einen der Ringkerne geführt. Der eine der beiden Ringkerne trägt eine Erregerspule, der andere eine Empfangsspule. Der Widerstand der Flüssigkeit der die beiden Ringkerne miteinander koppelnden Leiterschleife ist ein Maß für die zu ermittelnde Leitfähigkeit der Flüssigkeit.at Such devices each have a branch of the liquid leading Conductor loop passed through one of the toroidal cores. The one of the two ring cores wears a Excitation coil, the other a receiving coil. The resistance of the Liquid the the two ring cores coupling conductor loop is a Measure for that too determining conductivity the liquid.

Ein Nachteil dieser Vorrichtungen besteht darin, dass diese von Gegenständen, die der Vorrichtung unmittelbar benachbart angeordnet sind, erheblich beeinflusst werden.One Disadvantage of these devices is that these objects, the the device are arranged immediately adjacent considerably to be influenced.

Aus der US 5,696,251 ist es bekannt, bei einer vergleichbaren Vorrichtung die Zweige einer elektrischen Leiterschleife sich kreuzend durch einen Ringkern zu führen.From the US 5,696,251 It is known, in a comparable device, the branches of an electrical conductor loop to lead crossing a ring core.

Der Erfindung liegt die Aufgabe zugrunde, die bekannte Vorrichtung dahingehend weiterzubilden, dass diese von außen weniger gestört werden kann.Of the Invention is based on the object, the known device to the effect to further educate that they can be disturbed less from the outside.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass die Leiterschleife in Form einer Acht ausgebildet ist und jeder der beiden einander kreuzenden Zweige der Leiterschleife durch beide Ringkerne geführt ist.According to the invention this Task solved by that the conductor loop is in the form of a figure eight and each one of the two crossing branches of the conductor loop through both ring cores guided is.

Durch diese Ausbildung der Leiterschleife, bei der jede der beiden einander kreuzenden Zweige der Leiterschleife sowohl durch den mit der Erregerspule versehenen Ringkern, als auch durch den mit der Empfangsspule versehenen Ringerkern geführt sind, werden störende Einflüsse kompensiert, die Vorrichtung ist gegenüber Störungen weniger anfällig.By this training of the conductor loop, where each of the two each other crossing branches of the conductor loop by both the excitation coil provided toroidal core, as well as by the provided with the receiving coil Ring core are guided, be disturbing influences compensates, the device is less susceptible to interference.

Die Erfindung wird im folgenden anhand einer Zeichnung erläutert. Dabei zeigt:The Invention will be explained below with reference to a drawing. there shows:

1 eine Seitenansicht der Anordnung, und 1 a side view of the arrangement, and

2 eine Schnittansicht durch die Anordnung. 2 a sectional view through the arrangement.

Die Anordnung besteht aus zwei je mit einer Wicklung versehenen Ringkernen und einer die Flüssigkeit führenden, aus einem Zufluss A, zwei durch die Ringkerne geführten Zweigen und einem Abfluss B bestehenden Leiterschleife. Die Leiterschleife ist in Form einer Acht ausgebildet, jeder der beiden einander kreuzenden Zweige der Leiterschleife sind durch beide Ringkerne geführt.The Arrangement consists of two each provided with a winding ring cores and one the liquid leading, from a tributary A, two branches led by the toroidal cores and a drain B existing conductor loop. The conductor loop is formed in the form of an eight, each of the two intersecting Branches of the conductor loop are guided through both ring cores.

Claims (1)

Vorrichtung zum induktiven Messen der elektrischen Leitfähigkeit einer Flüssigkeit, mit wenigstens zwei mit je einer Wicklung versehenen Ringkernen und einer die Flüssigkeit führenden, aus einem Zufluss (A), zwei durch die Ringkerne geführten Zweigen und einem Abfluss (B) bestehenden Leiterschleife, dadurch gekennzeichnet, dass die Leiterschleife in Form einer 8 ausgebildet ist und jeder der beiden einander kreuzenden Zweige der Leiterschleife durch beide Ringkerne geführt ist.Device for the inductive measurement of the electrical conductivity of a liquid, comprising at least two toroidal cores and a liquid leading from an inlet (A), two branches guided by the toroidal cores and a conductor loop (B), characterized the conductor loop is in the form of an 8 and each of the two intersecting branches of the conductor loop is guided through both ring cores.
DE2000105491 2000-02-08 2000-02-08 Device for inductively measuring the electrical conductivity of a liquid Expired - Lifetime DE10005491B4 (en)

Priority Applications (1)

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DE2000105491 DE10005491B4 (en) 2000-02-08 2000-02-08 Device for inductively measuring the electrical conductivity of a liquid

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DE2000105491 DE10005491B4 (en) 2000-02-08 2000-02-08 Device for inductively measuring the electrical conductivity of a liquid

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DE10005491A1 DE10005491A1 (en) 2005-03-10
DE10005491B4 true DE10005491B4 (en) 2006-02-02

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005029047B4 (en) 2005-06-21 2007-06-21 Miele & Cie. Kg Sensor device and method for producing a sensor device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5659251A (en) * 1994-06-30 1997-08-19 Hewlett-Packard Company Electromagnetic inductive probe
US5959455A (en) * 1997-10-06 1999-09-28 Falmouth Scientific, Inc. Fluid conductively sensor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5659251A (en) * 1994-06-30 1997-08-19 Hewlett-Packard Company Electromagnetic inductive probe
US5959455A (en) * 1997-10-06 1999-09-28 Falmouth Scientific, Inc. Fluid conductively sensor

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Representative=s name: LOBEMEIER, MARTIN LANDOLF, DR., DE

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