DE448907C - Arrangement for controlling a secondary electrical counting, measuring, registering or regulating device with a primary measuring instrument - Google Patents

Arrangement for controlling a secondary electrical counting, measuring, registering or regulating device with a primary measuring instrument

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Publication number
DE448907C
DE448907C DEA44424D DEA0044424D DE448907C DE 448907 C DE448907 C DE 448907C DE A44424 D DEA44424 D DE A44424D DE A0044424 D DEA0044424 D DE A0044424D DE 448907 C DE448907 C DE 448907C
Authority
DE
Germany
Prior art keywords
primary
measuring
arrangement
registering
controlling
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
DEA44424D
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German (de)
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.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
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 BBC Brown Boveri France SA filed Critical BBC Brown Boveri France SA
Priority to DEA44424D priority Critical patent/DE448907C/en
Application granted granted Critical
Publication of DE448907C publication Critical patent/DE448907C/en
Expired legal-status Critical Current

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Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B1/00Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values
    • G05B1/01Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric
    • G05B1/04Comparing elements, i.e. elements for effecting comparison directly or indirectly between a desired value and existing or anticipated values electric with sensing of the position of the pointer of a measuring instrument

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)

Description

Anordnung zur Steuerung eines sekundären elektrischen Zähl-, ließ-, Registrier-oder Regulierapparats mit einem primären meßinstrument. Es ist bekannt, einen sekundären elektrischen Meßapparat mit einem primären Meßinstrument zu steuern, bei dem ein Zeiger o. dgl. des letzteren periodisch auf einem Regelwiderstand im Stromkreis des sekundären Apparates Kontakt macht.Arrangement for controlling a secondary electrical counting, let-, Registering or regulating apparatus with a primary measuring instrument. It is known, to control a secondary electrical measuring apparatus with a primary measuring instrument, in which a pointer or the like of the latter periodically on a variable resistor im Secondary apparatus circuit makes contact.

Nach der Erfindung wird diese periodische Bewegung des Zeigers von einer unabhängigen Bewegungsquelle bewirkt, beispielsweise von einem Uhrwerk oder einem Svnchrotiniotor. Dabei soll der Antrieb gleichmäßig so erfolgen, daß sowohl die Kontaktfrequenz als auch die Kontaktdauer konstant sind, damit das angeschlossene Sekundärinstrument i. B. ein Zähler, richtig über den zeitlichen Verlauf der Stromimpulse registriert. Bei Verwendung von Registrierinstrumenten ist es eine Vereinfachung, wenn die Trommel des Registrierapparates von der gleichen Be-,vegungsquelle angetrieben wird wie der bewegliche Kontaktapparat.According to the invention, this periodic movement of the pointer of caused by an independent source of movement, for example from a clockwork or a Svnchrotiniotor. The drive should take place evenly so that both the contact frequency as well as the contact duration are constant so that the connected Secondary instrument i. B. a counter, correctly about the timing of the current pulses registered. When using registration instruments, it is a simplification, when the drum of the recorder is driven by the same source of motion becomes like the movable contact apparatus.

Damit der Zähler auch richtig über den zeitlichen Verlauf der primären zu messenden Größe integriert, ist es nötig, daß die einzelnen Stromimpulse der letzteren- stets proportional sind. Dies läßt sich durch passende Stufung ..des Widerstandes stets erreichen, und zwar auch dann, wenn die Ausschläge des Zeigers der primären zu messenden Größe nicht proportional sind, sondern nach irgendeinem anderen Gesetz von ihr abhängen.So that the counter is also correct about the temporal course of the primary integrated to be measured, it is necessary that the individual current pulses of the the latter are always proportional. This can be done by appropriate grading ..des Always achieve resistance, even when the pointer deflects are not proportional to the primary quantity to be measured, but to any one other law depend on it.

Idieraus ergibt sich eine weitere Anwendungsmöglichkeit der Erfindung. Sie ermöglicht es, auch für solche Meßgrößen zeitlich integrierende Instrumente zu verwenden, mit denen es an sich nicht möglich ist, ein der Meßgröße proportionales Drehmoment zu erzeugen. Als Beispiel möge ein Amperestundenzähler für Wechselstrom genannt sein.This results in a further possible application of the invention. It makes it possible to use time-integrating instruments for such measured quantities to use, with which it is not possible to use one proportional to the measured variable To generate torque. As an example, consider an ampere-hour meter for alternating current be called.

Umgekehrt gestattet die Erfindung, mit solchen Meßgrößen, die an sich Meßinstruinente mit proportionaler Skala, z. B. Wattmeter bedingen, andei e Skalen, etwa quadratische zu erzielen, was z. B. dann von Wichtigkeit sein kann, wenn eine quadratische Addition zweier 1leßgrößen vorgenommen «-erden soll, wenn man etwa eine elektrische Wirkleistung mit der entsprechenden Blindleistung quadratisch addieren will, um die Scheinleistung zu erhalten.Conversely, the invention allows, with such measured variables, which per se Measuring instruments with a proportional scale, e.g. B. require wattmeters, andei e scales, to achieve approximately square, which z. B. can be of importance when a quadratic addition of two measured quantities should be undertaken, if one is for example add an electrical real power to the square of the corresponding reactive power want to get the apparent power.

Claims (3)

PATENTANSPRÜCHE: z. Anordnung zur Steuerung eines sekundären elektrischen Zähl-, Meß-, Registrier- oder Regelapparates mit einem primären Meßinstrument, bei dem ein Zeiger o. dgl. des letzteren mittels eines leitenden Bügels zwecks periodischer Ko:itaktgabe auf einen Regelwiderstand im Stromkreis des sekundären Apparates angedrückt wird, dadurch gekennzeichnet, daß der leitende Bügel von einer unabhängigen Bewegungsquelle, z. B. einem Uhrwerk oder einem Synchronmotor, gleichmäßig derart angetrieben wird, daß sowohl die Kontaktfrequenz als auch die jeweilige Kontaktdauer konstant sind. PATENT CLAIMS: e.g. Arrangement for controlling a secondary electrical Counting, measuring, registering or regulating apparatus with a primary measuring instrument a pointer or the like of the latter by means of a conductive bracket for the purpose of periodic Ko: itaktgabe pressed on a rheostat in the circuit of the secondary apparatus is characterized in that the conductive bracket is powered by an independent source of movement, z. B. a clockwork or a synchronous motor, is driven evenly in such a way, that both the contact frequency and the respective contact duration are constant. 2. Anordnung nach Anspruch z, dadurch gekennzeichnet, daß die Trommel des Registrierapparates- und der bewegliche Kontaktapparat von ein und dersel-. ben Bewegungsquelle angetrieben werden. 2. Arrangement according to claim z, characterized in that the drum of the registration apparatus and the movable contact apparatus of one and the same. ben source of motion are driven. 3. Anordnung nach Anspruch r, dadurch gekennzeichnet, daß durch entsprechende Abstufung des Widerstandes der Ausschlag des Sekundärapparates in eine bestimmt gewollte Abhängigkeit von der primär zu messenden Größe gebracht ist. q.. Anordnung nach Anspruch 3, gekennzeichnet durch eine solche Abstufung des Widerstandes, daß ungeachtet einer nicht proportionalen Skala des primären Meßinstrumentes der Ausschlag des Sekundärapparates der zu messenden Größe proportional ist.3. Arrangement according to claim r, characterized in that that by grading the resistance accordingly, the deflection of the secondary apparatus brought into a certain deliberate dependence on the primary variable to be measured is. q .. Arrangement according to claim 3, characterized by such a gradation of the Resistance that regardless of a non-proportional scale of the primary meter the deflection of the secondary apparatus is proportional to the quantity to be measured.
DEA44424D 1924-02-12 1924-02-12 Arrangement for controlling a secondary electrical counting, measuring, registering or regulating device with a primary measuring instrument Expired DE448907C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA44424D DE448907C (en) 1924-02-12 1924-02-12 Arrangement for controlling a secondary electrical counting, measuring, registering or regulating device with a primary measuring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA44424D DE448907C (en) 1924-02-12 1924-02-12 Arrangement for controlling a secondary electrical counting, measuring, registering or regulating device with a primary measuring instrument

Publications (1)

Publication Number Publication Date
DE448907C true DE448907C (en) 1927-08-31

Family

ID=6934200

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA44424D Expired DE448907C (en) 1924-02-12 1924-02-12 Arrangement for controlling a secondary electrical counting, measuring, registering or regulating device with a primary measuring instrument

Country Status (1)

Country Link
DE (1) DE448907C (en)

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