DE644731C - Flow meter - Google Patents
Flow meterInfo
- Publication number
- DE644731C DE644731C DEC47771D DEC0047771D DE644731C DE 644731 C DE644731 C DE 644731C DE C47771 D DEC47771 D DE C47771D DE C0047771 D DEC0047771 D DE C0047771D DE 644731 C DE644731 C DE 644731C
- Authority
- DE
- Germany
- Prior art keywords
- measured
- chain
- bridge
- medium
- motor
- 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
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/37—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of communicating tubes or reservoirs with movable fluid levels, e.g. by U-tubes
- G01F1/377—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of communicating tubes or reservoirs with movable fluid levels, e.g. by U-tubes using a ring-balance as indicating element
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Description
Es ist bekannt, bei Strömungsmengenmessern (Ringwaagen) Berichtigungen des . Meßwertes nach einer Zustandsgröße dadurch vorzunehmen, daß man ein Zusatzgewicht in Abhängigkeit von der Zustandsgröße mehr oder minder auf einen in Abhängigkeit von der Meßgröße verschwenkten Hebelarm selbsttätig abrollen läßt.It is known that in flow meters (ring balances) corrections of the . To make a measured value according to a state variable by adding an additional weight in Depending on the state variable more or less on one depending on the measured variable pivoted lever arm can roll automatically.
Der Gegenstand der Erfindung besteht darin, die Vergrößerung oder Verkleinerung des Meßgewichtes direkt oder indirekt dadurch bewirken zu lassen, daß das Meßgewicht als Kettenbunker ausgebildet wird und ein mehr oder minder großes Stück einer Meßkette darin abgelagert oder daraus entnommen wird. Hierdurch wird eine rückwirkungsfreie Änderung des Meßgewichtes entsprechend den Änderungen der Zustandsgröße des zu messenden Mediums erzielt. Die Änderung der abgelagerten Kettenlänge kann direkt durch ein Gerät erfolgen, das auf Änderungen des Fluidutnzustandes anspricht oder indirekt. Die Kette ist beispielsweise auf einer Kettentrommel gelagert, die von einem Getriebe bewegt wird. Die Bewegung des Getriebes nach der einen oder anderen Seite wird gesteuert von Geräten, die auf Änderungen der physikalischen Eigenschaften des Mediums ansprechen. In der Figur ist ein Beispiel hierfür angegeben.The object of the invention is the enlargement or reduction of the measured weight directly or indirectly by causing the measured weight is designed as a chain bunker and a more or less large piece of a measuring chain is deposited in it or removed from it will. This results in a reaction-free change in the measured weight in accordance with the changes in the state variable of the medium to be measured. The change in the deposited chain length can be done directly by a device that responds to changes in the fluid state or indirectly. The chain is mounted on a chain drum, for example, which is of a Gear is moved. The movement of the gear to one side or the other is controlled by devices that respond to changes in the physical properties of the Address the medium. An example of this is given in the figure.
α ist eine Ringwaage bekannter Art, die in einer Schneide b drehbar gelagert ist. Mit der Ringwaage ist in bekannter Weise eine Kurve c verbunden über die ein Band d geht, an dem das Meßgewicht P hängt. Das Meßgewicht P ist erfindungsgemäß mit einem Bunker s versehen, in dem sich die Kette t ablagern kann; u ist die Kettentrommel, die von dem Getriebe v, z. B. einem nach beiden Richtungen hin beweglichen Elektromotor, bewegt wird. Mit der Motor- oder Trommelachse ist unter Zwischenschaltung geeigneter Übersetzungsglieder eine Kontaktgabel verbunden, innerhalb deren ein Kontaktzeiger spielt. Der Kontaktzeiger ist mit einem Gerät w gekuppelt, das auf Änderungen einer oder mehrerer physikalischen Eigenschaften des zu messenden Mediums anspricht. Ist w zum Beispiel ein Druckmesser und steigt der Druck, so legt sich der Kontaktgeber gegen die eine Seite der Kontaktgabel, der Motor bewegt alsdann die Kettentrommel in einer solchen Richtung, daß ein entsprechendes Maß an Kettenlänge dem Bunker entnommen und das Meßgewicht leichter wird. Die Bewegung erfolgt so lange, bis der Kontakt wieder frei geworden ist.α is a ring balance of a known type, which is rotatably mounted in a cutting edge b. With the ring balance, a curve c is connected in a known manner, over which a belt d extends, on which the measured weight P hangs. According to the invention, the measured weight P is provided with a bunker s in which the chain t can be deposited; u is the chain drum that is driven by the gear v, z. B. an electric motor movable in both directions is moved. A contact fork, within which a contact pointer plays, is connected to the motor or drum axis with the interposition of suitable transmission elements. The contact pointer is coupled to a device w that responds to changes in one or more physical properties of the medium to be measured. If w is, for example, a pressure gauge and the pressure rises, the contactor lies against one side of the contact fork, the motor then moves the chain drum in such a direction that a corresponding amount of chain length is removed from the bunker and the measuring weight is lighter. The movement continues until the contact is free again.
Man kann in bekannter Weise die Geräte zur Messung der physikalischen Eigenschaften des zu messenden Mediums mit elektrischen Fernsendern versehen und i-n Summenschaltung auf ein Anzeigegerät wirken lassen, das den Kontaktzeiger trägt. Durch die an sich bekannte besondere Formgebung der Fernsender ist es möglich, die Änderungen einer physikalischen Eigenschaft des Mediums in jeder gewollten Weise auf das Meßgerät wirken zu lassen.One can use the devices for measuring the physical properties in a known manner of the medium to be measured provided with electrical remote transmitters and i-n summation circuit let act on a display device that carries the contact pointer. By in itself known special shape of the remote transmitter, it is possible to change a physical property of the medium in any desired way on the measuring device let it work.
Claims (1)
ν \f: 2. Druckwaage nach Anspruch i, da- >ii>durch gekennzeichnet, daß zur Steuerung as der Ablagerung und Entnahme von Kettengewicht in Abhängigkeit von den Zustandeänderungen des zu messenden Mediums ein Wendemotor (V) vorgesehen ist.ι. Pressure compensator for flow rate measurement with counter-torque changed in accordance with the changes in the state of the medium to be measured, characterized in that the measured weight (F), by which the counter-torque is generated, is a chain hopper with '. * \ I ^ Chain (i) is formed.
ν \ f: 2. Pressure compensator according to claim i, da->ii> characterized in that a turning motor (V) is provided to control the storage and removal of chain weight as a function of the changes in the state of the medium to be measured.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC47771D DE644731C (en) | 1933-04-14 | 1933-04-14 | Flow meter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC47771D DE644731C (en) | 1933-04-14 | 1933-04-14 | Flow meter |
Publications (1)
Publication Number | Publication Date |
---|---|
DE644731C true DE644731C (en) | 1937-05-12 |
Family
ID=7026638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEC47771D Expired DE644731C (en) | 1933-04-14 | 1933-04-14 | Flow meter |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE644731C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2451425A (en) * | 1946-12-18 | 1948-10-12 | Brown Instr Co | Flowmeter |
-
1933
- 1933-04-14 DE DEC47771D patent/DE644731C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2451425A (en) * | 1946-12-18 | 1948-10-12 | Brown Instr Co | Flowmeter |
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