DE439613C - Arrangement for measuring the electrical resistance of electrolytes - Google Patents
Arrangement for measuring the electrical resistance of electrolytesInfo
- Publication number
- DE439613C DE439613C DEH103904D DEH0103904D DE439613C DE 439613 C DE439613 C DE 439613C DE H103904 D DEH103904 D DE H103904D DE H0103904 D DEH0103904 D DE H0103904D DE 439613 C DE439613 C DE 439613C
- Authority
- DE
- Germany
- Prior art keywords
- electrolytes
- electrical resistance
- measuring
- arrangement
- resistor
- 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
Links
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
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/045—Circuits
- G01N27/046—Circuits provided with temperature compensation
Landscapes
- 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)
- Measuring Oxygen Concentration In Cells (AREA)
Description
Anordnung zur Messung des elektrischen Widerstandes von Elektrolyten. Die Messung des elektrischen Widerstandes eines Elektrolyten kann bekanntlich in vielen Fällen zur Feststellung und Kontrolle der chemischen Zusammensetzung des Elektrolyten benutzt werden. Hierbei macht sich jedoch sehr störend bemerkbar, daß der elektrische Widerstand von Elektrolyten stark von der Temperatur abhängt, so daß die Kenntnis des Widerstandes allein ohne Berücksichtigung der Temperatur keinen eindeutigen Anhalt für die Zusammensetzung des Elektrolyten bildet. Besonders störend wirkt dies, wenn die Zusammensetzungen des Elektrolyten nicht nur gemessen, sondern registriert werden sollen.Arrangement for measuring the electrical resistance of electrolytes. The measurement of the electrical resistance of an electrolyte can be known in many cases to determine and control the chemical composition of the Electrolytes are used. However, it is very annoying that the electrical resistance of electrolytes depends strongly on the temperature, so that the knowledge of the resistance alone without taking the temperature into account is of no use provides a clear indication of the composition of the electrolyte. Particularly annoying This works when the compositions of the electrolyte are not only measured, but should be registered.
Gegenstand der Erfindung ist eine Schaltung, welche es ermöglicht, bei solchen Messungen den Einfluß der Temperatur praktisch zu eliminieren. Diese Schaltung besteht, wie die Abbildung zeigt, in der Hinzufügung eines Parallel- und eines Vorwiderstandes zu dem Elektrolyten, wobei für den Vorwiderstand ein Material von positivem Temperaturkoeffizienten gewählt ist. Die Einrichtung ist so zu treffen, daß der Vorwiderstand R2 und der Elektrolytwiderstand E gleiche Temperatur haben.. Unter diesen Voraussetzungen las, sen sich die Widerstände R1 und R2 so bestimmen, daß der Kombinationswiderstand zwischen den Punkten A und B bei zwei bestimmten Konzentrationen für je zwei Temperaturen den gleichen Wert gibt. Bei geeigneter Wahl dieser zwei Konzentrationen und dieser je zwei Temperaturen erhält man dann für ein genügend großes Gebiet verschiedener Konzentrationen die praktische Unabhängigkeit des Kombinationswiderstandes. von der Temperatur.The subject of the invention is a circuit which makes it possible to practically eliminate the influence of temperature in such measurements. These Circuit consists, as the figure shows, in the addition of a parallel and a series resistor to the electrolyte, with a material for the series resistor of positive temperature coefficient is chosen. The facility is to be met that the series resistor R2 and the electrolyte resistor E have the same temperature .. Under these conditions, the resistances R1 and R2 can be determined as follows: that the combination resistance between points A and B determined at two Concentrations for every two temperatures gives the same value. With suitable A choice of these two concentrations and these two temperatures each is then obtained practical independence for a sufficiently large area of different concentrations of the combination resistance. on the temperature.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH103904D DE439613C (en) | Arrangement for measuring the electrical resistance of electrolytes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH103904D DE439613C (en) | Arrangement for measuring the electrical resistance of electrolytes |
Publications (1)
Publication Number | Publication Date |
---|---|
DE439613C true DE439613C (en) | 1927-01-13 |
Family
ID=7169386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH103904D Expired DE439613C (en) | Arrangement for measuring the electrical resistance of electrolytes |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE439613C (en) |
-
0
- DE DEH103904D patent/DE439613C/en not_active Expired
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