AT126764B - Driving iron for induction measuring devices. - Google Patents

Driving iron for induction measuring devices.

Info

Publication number
AT126764B
AT126764B AT126764DA AT126764B AT 126764 B AT126764 B AT 126764B AT 126764D A AT126764D A AT 126764DA AT 126764 B AT126764 B AT 126764B
Authority
AT
Austria
Prior art keywords
iron
parts
measuring devices
driving iron
driving
Prior art date
Application number
Other languages
German (de)
Original Assignee
Landis & Gyr Ag
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 Landis & Gyr Ag filed Critical Landis & Gyr Ag
Application granted granted Critical
Publication of AT126764B publication Critical patent/AT126764B/en

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  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Description

  

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   Bei wachsender Temperatur werden die Teile 5 mehr und mehr   unmagnetisch,   so dass gewissermassen eine Verkleinerung der Polaufsatzbleche eintritt. Infolgedessen wird eine Zunahme des Drehmomentes und Verkleinerung des Phasenwinkels zwischen Spannung-und Stromtriebfluss verhindert. 



   Durch geeignete Dimensionierung der Breite des Legierungsteiles. 5 sowie durch Wahl einer bestimmten chemischen Zusammensetzung der Legierung ist es möglich, mit solchen Aufsatzblechen den Temperaturfehler eines Messgerätes innerhalb eines grösseren Temperaturbereiches bei   cos y = 1   und cos   tp   =   0"5   mit einer praktisch vollkommen ausreichenden Genauigkeit zu kompensieren. 



   Die Verbindung der Legierungsteile 5 mit den Eisenteilen 4 kann auf beliebige Art erfolgen. Im Ausführungsbeispiel sind die Teile an den Stirnkanten stumpf aneinanderstossend durch Löten oder   Schweissen   miteinander verbunden. Die einen Teile könnten jedoch auch die andern Teile untergreifen und an der   Berührungsfläche   zwischen den Untergreifungen und den andern Teilen durch   Schweissen   oder Nieten miteinander verbunden sein. 



   Die Teile könnten auch durch unmagnetische Verbindungslaschen unter Anwendung von Nieten oder durch   schwalbenschwanzförmige   Verzapfung ihrer einander zugekehrten Stirnkanten miteinander verbunden sein. 



   PATENT-ANSPRÜCHE :
1. Triebeisen für Induktionsmessgeräte mit durch Aufsatzbleche   vergrösserter Wirkfläche   der Pole, dadurch gekennzeichnet, dass die Aufsatzbleche teil eise aus Eisen und   teil :   eise aus einer Wärmelegierung zusammengesetzt sind.



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   As the temperature rises, the parts 5 become more and more non-magnetic, so that, to a certain extent, the size of the pole top plates is reduced. As a result, an increase in the torque and a decrease in the phase angle between the voltage and current drive flow are prevented.



   By appropriately dimensioning the width of the alloy part. 5 as well as by choosing a certain chemical composition of the alloy, it is possible to compensate the temperature error of a measuring device within a larger temperature range with cos y = 1 and cos tp = 0 "5 with a practically completely sufficient accuracy.



   The connection of the alloy parts 5 with the iron parts 4 can be done in any way. In the exemplary embodiment, the parts are butt butt connected to one another at the front edges by soldering or welding. The one parts could, however, also reach under the other parts and be connected to one another at the contact surface between the undercuts and the other parts by welding or riveting.



   The parts could also be connected to one another by non-magnetic connecting straps with the use of rivets or by dovetail-shaped mortising of their facing edges.



   PATENT CLAIMS:
1. Driving iron for induction measuring devices with the effective surface of the poles enlarged by the attachment plates, characterized in that the attachment plates are composed partly of iron and partly of iron from a heat alloy.

Claims (1)

2. Triebeisen nach Anspruch 1, dadurch gekennzeichnet, dass die Eisenteile der Aufsatzbleche die Polfläehen nach vorn und aussen hin vergrössern und die Legierungsteile eine weitere Vergrösserung in den gleichen Richtungen wie die Eisenteile bewirken. 2. Driving iron according to claim 1, characterized in that the iron parts of the top plates enlarge the pole faces forwards and outwards and the alloy parts cause a further increase in the same directions as the iron parts. 3. Triebeisen nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, dass die Legierungsteile der Aufsatzbleche in der gleichen Ebene, wie die Eisenteile derselben liegend, an die Eisenteile angeschlossen sind. 3. Driving iron according to Claims 1 and 2, characterized in that the alloy parts of the top plates are connected to the iron parts in the same plane as the iron parts thereof lying. 4. Triebeisen nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, dass die Eisen-und Legierungsteile durch unmagnetische Verbindungslaschen und Nieten miteinander verbunden sind. EMI2.1 4. Driving iron according to claims 1 to 3, characterized in that the iron and alloy parts are connected to one another by non-magnetic connecting straps and rivets. EMI2.1
AT126764D 1926-09-03 1930-03-24 Driving iron for induction measuring devices. AT126764B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE118026T 1926-09-03
CH126764X 1929-04-11

Publications (1)

Publication Number Publication Date
AT126764B true AT126764B (en) 1932-02-10

Family

ID=29402942

Family Applications (1)

Application Number Title Priority Date Filing Date
AT126764D AT126764B (en) 1926-09-03 1930-03-24 Driving iron for induction measuring devices.

Country Status (1)

Country Link
AT (1) AT126764B (en)

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