DE513965C - Device for electromagnetic readjustment of a pointer - Google Patents
Device for electromagnetic readjustment of a pointerInfo
- Publication number
- DE513965C DE513965C DEH121578D DEH0121578D DE513965C DE 513965 C DE513965 C DE 513965C DE H121578 D DEH121578 D DE H121578D DE H0121578 D DEH0121578 D DE H0121578D DE 513965 C DE513965 C DE 513965C
- Authority
- DE
- Germany
- Prior art keywords
- pointer
- electromagnetic
- readjustment
- measuring mechanism
- pointers
- 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
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
- G01R17/02—Arrangements in which the value to be measured is automatically compared with a reference value
- G01R17/04—Arrangements in which the value to be measured is automatically compared with a reference value in which the reference value is continuously or periodically swept over the range of values to be measured
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Jigs For Machine Tools (AREA)
Description
Vorrichtung zum elektromagnetischen Nachstellen eines Zeigers Es sind Vorrichtungen bekannt, welche dazu dienen, einen (Sekundär-) Zeiger in die der Stellung eines mit dem Meßwerk verbundenen (Primär-) Zeigers entsprechende Stellung einrücken zu lassen. Einige dieser Vorrichtungen arbeiten auch auf magnetischen Wege, indem ein Magnet einen Anker mitnimmt oder umgekehrt ein Anker einen Magneten mitnimmt. Die dabei verwendeten Magnete waren teils Stahlmagnete, teils dauernd oder periodisch erregte Elektromagnete.Device for electromagnetic readjustment of a pointer There are Devices known which are used to set a (secondary) pointer in the position Move a (primary) pointer connected to the measuring mechanism into the corresponding position allow. Some of these devices also work by magnetic means a magnet takes an armature with it or, conversely, an armature takes a magnet with it. The magnets used were partly steel magnets, partly permanent or periodic excited electromagnets.
Von den bekannten Einrichtungen unterscheidet sich diejenige nach vorliegender Erfindung dadurch, daß der verwendete Elektromagnet erst nach erfolgtem, in bekannter Weise sich vollziehendem Festhalten des dem (Primär-) Zeiger tragenden Meßwerkes eingeschaltet wird und dadurch den Nachstellzeiger in eine der Stellung des Meßzeigers entsprechende Stellung nachrückt.The one after differs from the known facilities present invention in that the electromagnet used only after the holding the (primary) pointer bearing in a known manner Measuring mechanism is switched on and thereby the adjustment pointer in one of the positions the corresponding position of the measuring pointer moves up.
Die Erfindung ist in der Zeichnung an einem Ausführungsbeispiel dargestellt..The invention is shown in the drawing using an exemplary embodiment.
Ein bewegliches System, z. B. eine mit dem Zeiger z ausgerüstete Drehspule, nimmt entsprechend dem Meßwer t eine bestimmte Stellung ein... Diese Stellung wird durch einen Fallbügel f oder auf sonst bekannte Art periodisch festgehalten. Der Zeiger ,-l' welcher unter Umständen größer und schwerer sein mag als z und: irgendwelche Funktionen zu übernehmen bat, soll in eine übereinstimmende Stellung mit - gebracht werden. Dies geschieht mit Hilfe einer periodisch einsetzenden elektromagnetischen Kraft, welche verursacht, daß die festen und beweglichen Teile voneinander angezogen werden..A moving system, e.g. B. a moving coil equipped with the pointer z, assumes a certain position according to the measured value ... This position becomes periodically held by a drop bracket f or in any other known manner. Of the Pointer, -l 'which may be larger and heavier than z and: any Asked to take over functions, should be brought into a matching position will. This is done with the help of a periodic electromagnetic Force that causes the fixed and moving parts to be attracted to each other will..
In dem Ausführungsbeispiel ist das leichtere Zeigersystem mit einem Eisenstück e versehen. An dem schvereren Zeiger ist das größere Eisenstück ei, welches das Joch zu dem Anker e bilden soll, befestigt. Die Magnetisierung geschieht durch eine Spule s, die hier als feste Spule gedacht ist, aber auch mit e1 beweglich sein kann.In the exemplary embodiment, the lighter pointer system is with a Iron piece e provided. The larger piece of iron on the shearer pointer is egg, which the yoke to form the anchor e is attached. The magnetization happens through a coil s, which is intended here as a fixed coil, but can also be movable with e1 can.
Je nach der Stärke der elektromagnetischen Wirkung kann man den Bereich, innerhalb dessen z1 der Stellung von s nachfolgt, größer oder kleiner wählen. In den meisten Fällen genügt es, wenn der Bereich. des Nachstellens geringer ist als die Ausdehnung der Skale. Man wird in diesem. Falle den genannten Spielraum eingrenzen. Man kann daher gabelartige Begrenzungsanschläge g" vorsehen, welche verhindern, daß der Zeiger z, sich aus dem Wirkungsbereich des magnetischen Anzugs zu weit entfernt.Depending on the strength of the electromagnetic effect, the area can be within which z1 follows the position of s, choose larger or smaller. In in most cases it is sufficient if the area. of readjustment is less than the expansion of the scale. One becomes in this. Limit the mentioned scope. One can therefore provide fork-like limit stops g ″ which prevent that the pointer z, is too far removed from the effective range of the magnetic attraction.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH121578D DE513965C (en) | Device for electromagnetic readjustment of a pointer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH121578D DE513965C (en) | Device for electromagnetic readjustment of a pointer |
Publications (1)
Publication Number | Publication Date |
---|---|
DE513965C true DE513965C (en) | 1930-12-05 |
Family
ID=7173900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH121578D Expired DE513965C (en) | Device for electromagnetic readjustment of a pointer |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE513965C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1195959B (en) * | 1961-07-14 | 1965-07-01 | Siemens Ag | Device for converting a pointer position into pulses |
DE1232425B (en) * | 1962-03-05 | 1967-01-12 | Nordiska Armaturfab Ab | Arrangement for displaying the position of a pressure medium-operated valve via a volume meter |
-
0
- DE DEH121578D patent/DE513965C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1195959B (en) * | 1961-07-14 | 1965-07-01 | Siemens Ag | Device for converting a pointer position into pulses |
DE1232425B (en) * | 1962-03-05 | 1967-01-12 | Nordiska Armaturfab Ab | Arrangement for displaying the position of a pressure medium-operated valve via a volume meter |
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