DE344154C - - Google Patents

Info

Publication number
DE344154C
DE344154C DE1930344154D DE344154DD DE344154C DE 344154 C DE344154 C DE 344154C DE 1930344154 D DE1930344154 D DE 1930344154D DE 344154D D DE344154D D DE 344154DD DE 344154 C DE344154 C DE 344154C
Authority
DE
Germany
Prior art keywords
coils
resistance
ratio
sensitivity
pointer
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
DE1930344154D
Other languages
German (de)
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 filed Critical
Application granted granted Critical
Publication of DE344154C publication Critical patent/DE344154C/de
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
    • B41B27/00—Control, indicating, or safety devices or systems for composing machines of various kinds or types
    • B41B27/02—Systems for controlling all operations
    • B41B27/04—Keyboards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41B—MACHINES OR ACCESSORIES FOR MAKING, SETTING, OR DISTRIBUTING TYPE; TYPE; PHOTOGRAPHIC OR PHOTOELECTRIC COMPOSING DEVICES
    • B41B11/00—Details of, or accessories for, machines for mechanical composition using matrices for individual characters which are selected and assembled for type casting or moulding
    • B41B11/18—Devices or arrangements for assembling matrices and space bands
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/08—Measuring resistance by measuring both voltage and current
    • G01R27/10—Measuring resistance by measuring both voltage and current using two-coil or crossed-coil instruments forming quotient
    • G01R27/12—Measuring resistance by measuring both voltage and current using two-coil or crossed-coil instruments forming quotient using hand generators, e.g. meggers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Cleaning In General (AREA)
  • Input From Keyboards Or The Like (AREA)

Description

Verhältnis-Stromzeiger. Die Erfindung bezieht sich auf eine dem Bekannten gegenüber äußerst einfache Regelung der Empfindlichkeit von Verhältnis-Stromanzeigern. Während diese .bisher durch Veränderung des Winkels zwischen den beiden Spulen bewirkt wurde, ist ein zweckmäßig veränderlicher Widerstand zu beiden Spulen in Brücke geschaltet.Ratio current phasors. The invention relates to a known versus extremely simple regulation of the sensitivity of ratio current indicators. While this has so far been caused by changing the angle between the two coils an expediently variable resistor is connected to both coils in a bridge.

Die Zeichnung veranschaulicht schematisch ein Ausführungsbeispiel des Gegenstandes. s1 und s2 sind die in einem magnetischen Feld m-in drehbar angeordneten Spulen des Systems, r1 und r= die mit den beiden Spulen in Reihe liegenden zu untersuchenden Stromverbraucher. Die Stromanschlüsse sind mit a, b und c bezeichnet. In Brücke zu den Spulen s1 und s2 liegt der Widerstand w. Ist dieser Widerstand so gewählt, daß bei einem bestimmten Verhältnis n der die Spulen s1 und s2 durchfließenden .Ströme il und i2 der Zeiger über dem Ende der .Skala steht, dann läßt sich durch Verringerung des Widerstandsviertes w die Empfindlichkeit so einstellen, daß beispielsweise für das gleiche Verhältnis ia der Zeiger nur bis zur Hälfte der Skala ausschlägt. Die Einstellung des Widerstandes kann zweckmäßig mittels einer Stöpselanordnung bewirkt werden. In dem dargestellten Beispiel sind drei Meßbereiche vorgesehen; .die mittels zweier Stöpsel hergestellt werden können.The drawing schematically illustrates an embodiment of the object. s1 and s2 are the coils of the system that are rotatably arranged in a magnetic field m-in, r1 and r = the current consumers to be examined which are in series with the two coils. The power connections are labeled a, b and c. The resistance w is located in a bridge to the coils s1 and s2. If this resistance is chosen so that at a certain ratio n of the currents i1 and i2 flowing through the coils s1 and s2, the pointer is above the end of the .scale, then adjust the sensitivity by reducing the resistance fourth w so that, for example, the pointer generally only deflects up to half the scale for the same ratio. The adjustment of the resistance can expediently be effected by means of a plug arrangement. In the example shown, three measuring ranges are provided; .which can be made using two plugs.

Abgesehen von .dieser einfachen Empfindlichkeitsregelung hat die Zuschaltung des Widerstandes w zu den Spulen s1 .und s2 noch den weiteren Vorteil, daß dieser Widerstand zugleich als Dämpfungsmittel für -die Zeigerbewegung dienen kann, sofern wie dargestellt, die beiden Spulen den beweglichen Teil des Systems bilden und das Feld ruht.Apart from this simple sensitivity control, the connection has of the resistance w to the coils s1 .and s2 has the further advantage that this Resistance can also serve as a damping means for the pointer movement, provided that As shown, the two coils form the moving part of the system and the Field rests.

Claims (1)

PATENT-ANspRUCFi: ' Verhältnis-Stromanzeiger, dadurch gekennzeichnet, daß die beiden Systemspulen durch einen zweckmäßig veränderlichen Widerstand überbrückt sind, zum Zweck, die Verhältnisempfindlichkeit beliebig einzustellen.PATENT-ANspRUCFi: 'Ratio current indicator, characterized in that that the two system coils bridged by an expediently variable resistor are for the purpose of setting the ratio sensitivity as desired.
DE1930344154D 1929-09-16 1930-03-01 Expired DE344154C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US393080A US1792332A (en) 1929-09-16 1929-09-16 Keyboard for typographical machines

Publications (1)

Publication Number Publication Date
DE344154C true DE344154C (en) 1931-07-29

Family

ID=23553182

Family Applications (2)

Application Number Title Priority Date Filing Date
DE1930530403D Expired DE530403C (en) 1929-09-16 1930-03-01 Touch board for die setting and line casting machines, in which the touch board bars are guided through a bar that engages in a recess in the touch board bars and can be locked by a second bar
DE1930344154D Expired DE344154C (en) 1929-09-16 1930-03-01

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE1930530403D Expired DE530403C (en) 1929-09-16 1930-03-01 Touch board for die setting and line casting machines, in which the touch board bars are guided through a bar that engages in a recess in the touch board bars and can be locked by a second bar

Country Status (2)

Country Link
US (1) US1792332A (en)
DE (2) DE530403C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744290C (en) * 1940-12-14 1944-01-25 Hartmann & Braun Ag Bridge circuit with two-coil package winder
DE1139920B (en) * 1961-02-17 1962-11-22 Hartmann & Braun Ag Circuit arrangement with a two-coil quotient measuring instrument for measuring electrical resistances

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744290C (en) * 1940-12-14 1944-01-25 Hartmann & Braun Ag Bridge circuit with two-coil package winder
DE1139920B (en) * 1961-02-17 1962-11-22 Hartmann & Braun Ag Circuit arrangement with a two-coil quotient measuring instrument for measuring electrical resistances

Also Published As

Publication number Publication date
DE530403C (en) 1931-07-29
US1792332A (en) 1931-02-10

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