DE939293C - Device for measuring the water content of grain, meal, flour and other vegetable products - Google Patents

Device for measuring the water content of grain, meal, flour and other vegetable products

Info

Publication number
DE939293C
DE939293C DEP52919A DEP0052919A DE939293C DE 939293 C DE939293 C DE 939293C DE P52919 A DEP52919 A DE P52919A DE P0052919 A DEP0052919 A DE P0052919A DE 939293 C DE939293 C DE 939293C
Authority
DE
Germany
Prior art keywords
measuring
water content
flour
grain
meal
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
DEP52919A
Other languages
German (de)
Inventor
Paul Friedrich Kuehne
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEP52919A priority Critical patent/DE939293C/en
Application granted granted Critical
Publication of DE939293C publication Critical patent/DE939293C/en
Expired legal-status Critical Current

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
    • G01N27/048—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance for determining moisture content of the material

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)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Description

Vorrichtungen:-zur - Messung des Wassergehaltes' von - Getreide, Schrot, Mehl durch Méssung des elektrischen Widerstandes sind an sich bekannt. Devices: -for - measuring the water content of - grain, Whole, flour by measuring the electrical resistance are known per se.

Diese können aber in ihrem Ergebn.is. nicht befriedigen, weil der verschieden spezifische Widerstand der Produkte zu Meßfehlern führt. Diese Fehler werden noch vergrößert durch die elektrische Verstärkung der Messung, die notwendig ist, um überhaupt eine normale Skalenteilung zu erhalten. However, these can be in their result. not satisfy because of different specific resistance of the products leads to measurement errors. These mistakes are magnified by the electrical amplification of the measurement that is necessary is to get a normal scale division at all.

Die beschriebene Vorrichtung bezweckt, diese Fehlerquellen auszuschließen und mit einem erheb-.lich niedrigeren Kostenaufwand für die Fabrik kation auszukommen. Es wird dazu das Meßgut zwischen einen Stempel und eine- Matrize gebracht und unter Druck eine Meßtablette hergestellt, deren elektrischer Widenstand alsdann durch eine einfache Meßbrückenschaltung gemessen wird, wobei die anzeigende - Skala direkt in Feuchtigkeitsprozenten geeicht sein kann. Zum Ausgleich des spezifischen Wider&tandes verschiedenerMeßgüter werden erfindungsgemäß jeweils empirisch festgelegte Matrizen benutzt, so daß der Ausschlag des Instrumeabes immer dem jeweiligen Wassergehalt des Meßgutes entspricht, ohne jede Umrechnung seitens des Messenden. Die Stärke der Meßtabletten beträgt nur I bis 3 mm und weniger. Der Druck bewirkt eine gleichmäßige Verteilung des Wassers innerhalb der Meßtablette und schaltet damit Meßfehler, hervorgerufen durch den unterschiedlichen Wassergehalt in verschiedenen Lagen des Meßgutes, wie diese sonst .bei der .Widerstandsmessung oder der Dämpfungsmethode auftreten, völlig aus. The purpose of the device described is to exclude these sources of error and get by with a considerably lower cost for the fabrication. For this purpose, the material to be measured is brought between a punch and a die and under Pressure produced a measuring tablet, whose electrical resistance then through a simple measuring bridge circuit is measured, with the indicating - scale directly can be calibrated in moisture percentages. To compensate for the specific resistance different objects to be measured are each empirically established matrices according to the invention used, so that the rash of the Instrumeabes always the respective water content of the material to be measured, without any conversion on the part of the person measuring. The strenght of the measuring tablets is only 1 to 3 mm and less. The pressure causes a uniform Distribution of the water within the measuring tablet and thus switching measurement errors caused due to the different water content in different layers of the material to be measured, such as this would otherwise occur completely during the resistance measurement or the damping method the end.

In der Zeichnung ist ein Ausführungsbeispiel dargestellt. An exemplary embodiment is shown in the drawing.

I ist der Stempel einer Presse, 2 die Grundplatte und 3 die Matrize, die mit dem Meßgut 4 gefülltvistl Der Schalter 5. liegt inb einem Strankreis, der durch die Batterie 6 und Anzeigeïnstrument 7, den Stempel I, die Matrize 3 und die Grundplatte 2 gebildet wird. I is the punch of a press, 2 the base plate and 3 the die, which is filled with the material 4 to be measured. The switch 5. is in a circle, the through the battery 6 and display instrument 7, the punch I, the die 3 and the Base plate 2 is formed.

Der Stempel-t wird in Richtung Matrize in Bewegung gesetzt und preßt das Meßgut 4 zu einer Tablette zusammen. Die Stärke der Tablette ist abhängig von der Stärke der Matrize. Nun wird durch den Schalter 5 der Stromkreis geschlossen und ara Ausschlag des Instrumentes 7 der Wassergehalt in Prozenten direkt abgelesen. The punch-t is set in motion in the direction of the die and presses the material to be measured 4 together to form a tablet. The strength of the tablet depends on the strength of the die. The circuit is now closed by switch 5 and ara reading of the instrument 7 the water content as a percentage directly read off.

Es wurde bereits vorgeschlagen, den Widerstand einer unter einem bestimmten Druck stehenden Menge Mehl in einem Rohr zu messen und so den Feuchtigkeitsgehalt zu bestimmen. Hierbei ist aber keine Anpassung an den spezifischen Widerstand möglich, wie dieses nach der Erfindung durch die Anwendung der Matrizen erreicht wird. It has already been suggested that the resistance be one under one to measure the amount of flour in a tube under pressure and measure the moisture content to determine. However, no adjustment to the specific resistance is possible here, how this is achieved according to the invention through the use of the matrices.

Claims (1)

PATENTANSPRUCH: 1. Vorrichtung zur Messung des Wassergehalt.es. von Getreide, Schrot, Mehl und anderen pflanzlichen Produkten unter Druck durch Messung des elektrischen Widerstan-des von Tabletten, dadurch gekennzeichnet, daß Matrizen für die Herstellung der Tabletten vorgesehen sind, durch deren Größe der unterschiedliche spezifische elektrische Widerstand verschiedener Meßgüter ausgleichbar ist. PATENT CLAIM: 1. Device for measuring the water content. from Grain, meal, flour and other vegetable products under pressure by measurement of the electrical resistance of tablets, characterized in that matrices are intended for the production of tablets, due to their size of the different specific electrical resistance of different materials to be measured can be compensated. Angezogene Druckschriften; Zeitschrift »Textile Research Journal«, Vol. XVIII, Nr. 9, September I948, S. 526; »Handbuch der technischen Betriebskontrolle« von J. Krönert, Bd. III, S. 353 u. 354, I.Auflage, Leipzig 1944. Attracted pamphlets; "Textile Research Journal", Vol. XVIII, No. 9, September 1948, p. 526; "Manual of technical operational control" by J. Krönert, Vol. III, pp. 353 and 354, 1st edition, Leipzig 1944.
DEP52919A 1949-08-25 1949-08-25 Device for measuring the water content of grain, meal, flour and other vegetable products Expired DE939293C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP52919A DE939293C (en) 1949-08-25 1949-08-25 Device for measuring the water content of grain, meal, flour and other vegetable products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP52919A DE939293C (en) 1949-08-25 1949-08-25 Device for measuring the water content of grain, meal, flour and other vegetable products

Publications (1)

Publication Number Publication Date
DE939293C true DE939293C (en) 1956-02-16

Family

ID=7386061

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP52919A Expired DE939293C (en) 1949-08-25 1949-08-25 Device for measuring the water content of grain, meal, flour and other vegetable products

Country Status (1)

Country Link
DE (1) DE939293C (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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