DE472409C - Device for transmitting a rotating measuring movement from a closed vessel to the outside with the help of a magnetic field - Google Patents
Device for transmitting a rotating measuring movement from a closed vessel to the outside with the help of a magnetic fieldInfo
- Publication number
- DE472409C DE472409C DEH90990D DEH0090990D DE472409C DE 472409 C DE472409 C DE 472409C DE H90990 D DEH90990 D DE H90990D DE H0090990 D DEH0090990 D DE H0090990D DE 472409 C DE472409 C DE 472409C
- Authority
- DE
- Germany
- Prior art keywords
- outside
- magnetic field
- help
- transmitting
- measuring movement
- 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
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/02—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using mechanical means
- G01D5/06—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using mechanical means acting through a wall or enclosure, e.g. by bellows, by magnetic coupling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D4/00—Tariff metering apparatus
- G01D4/02—Details
- G01D4/06—Arrangement of clutches between driving and indicating member, e.g. of hysteresis clutch
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
Vorrichtung zur Übertragung einer rotierenden Meßbewegung aus einem geschlossenen Gefäß nach außen mit Hilfe eines magnetischen Feldes Es ist bekannt, mit Hilfe eines magnetischen Feldes eine Drehbewegung reibungsfrei aus einem geschlossenen Gehäuse nach außen zu übertragen. Diese Vorrichtungen haben jedoch den großen Nachteil, daß sie leicht aus dem Tritt fallen können bzw. daß die zueinandergehörigen Pole der Magnete sich verlieren - und sich nach einer gegenseitigen Verdrehung von go, i8o oder 36o' wieder festhalten. Dadurch -wird naturgemäß, wenn es sich darum handelt, das Ergebnis einer Messung nach außen reibungsfrei zu übertragen, das letztere wertlos, und der Fehler ist um so schlimmer, als es zumeist völlig unmöglich ist, eine solche Fehlanzeige ohne weiteres zu erkennen, da der Apparat an und für sich scheinbar ohne jede Störung weiterarbeitet.Apparatus for transmitting a rotating measuring movement from a closed vessel to the outside with the aid of a magnetic field It is known to transfer a rotational movement from a closed housing to the outside without friction with the aid of a magnetic field. However, these devices have the major disadvantage that they can easily fall out of step or that the poles of the magnets belonging to one another lose each other - and hold on again after a mutual twisting of go, i8o or 36o '. As a result, when it comes to transferring the result of a measurement to the outside without friction, the latter becomes worthless, and the error is all the worse as it is usually completely impossible to recognize such a false indication without further ado, since the Apparatus in and of itself continues to work apparently without any disturbance.
Die im nachstehenden beschriebene neue magnetische Vorrichtung zur Übertragung einer rotierenden Meßbewegung aus einem allseitig geschlossenen Raum heraus vermeidet diesen Fehler durch die Verwendung von nur einem Magnetpaar, welches im -Maxü-num nicht ganz eine volle Umdrehung ausführen kann. Macht man hierbei die Feldstärke genügend groß, so werden sich die Magnetpole in jeder Lage genügend. anziehen bzw. abstoßen und sich, da es innerhalb einer Umdrehung jeweils nur eine Ruhestellung für sie gibt, niemals verlieren können.The new magnetic device described below for Transmission of a rotating measuring movement from a space that is closed on all sides out avoids this error by using only one pair of magnets, which in the -Maxü-num cannot quite make a full turn. If you do this here The field strength is sufficiently large, so the magnetic poles are sufficient in every position. attract or repel and yourself, as there is only one rotation within one turn There is rest for her, can never lose.
In der Zeichnung ist ein Ausführungsbeispiel der neuen Vorrichtung schematisch dargestellt. a kennzeichnet die Wand eines allseitig geschlossenen Gehäuses, welches in der Mehnung abgebrochen dargestellt ist. b ist der drehbar auf einer Achse c im Innern des Gehäuses angeordnete Magnet, dessen Pole d und e sind. Das Gehäuse wird umfaßt von einem Magnet f, der ebenfalls drehbar auf einer Achse g sitzt. Seine Pole sind h und i. Die Achse g trägt weiter noch eine Rolle k. Wird nun durch irgendeine Meßbewegung der auf der Achse c des Meßsystetnes befindliche Magnet b bewegt, so haben die Pole e und d das Bestreben, durch die relativ dünne Wand dei: Kapsel a hindurch die Pole h und i des zweiten außenliegenden Magneten mitzunehmen. Mit Hilfe der Achse g und der Rolle k wird die -Meßbiewegung noch weitergeleitet. Begrenzt man den Arbeitsweg von b auf etwas -weniger als eine ganze Umdrehung, so wird jeder Stellung von b -nur eine Stellung von f entsprechen, und es wird praktisch keine Stellung geben, in der nicht die von d und e nach h und i gehenden Kraftlinien bemüht sind, das Magnetpaar in die richtige, füreinander bestimmte Lage zu bringen. Wenn die Bewegung von A und f nicht auf weniger -als eine Umdrehung beschränkt ist oder wenn mehrere Magnetpaare auf c und g angeordnet sind, so ergeben sich sofort weitere Stellungen, in denen die Kupplung festhält. Das System ist also nicht mehr eindeutig in seiner Lage zueinander bestimmt. Letzteres ist nur' dann der Fall, wenn die symmetrisch angeordnete Vermehrung der -Magnetpaare fland in Hand geht mit einer Verkleinerung des Umdrehungswinkels im quadratischen Verhältnis. Für zwei Magnetpaare ist also nur noch eine Bewegung der Achsen c und g von weniger als eine Viertelumdrehung zulässig.In the drawing, an embodiment of the new device is shown schematically. a denotes the wall of a housing closed on all sides, which is shown broken off in the dimension. b is the magnet rotatably arranged on an axis c inside the housing, the poles of which are d and e. The housing is encompassed by a magnet f, which is also rotatably seated on an axis g. Its poles are h and i. The axis g also carries a role k. If the magnet b located on the axis c of the measuring system is moved by any measuring movement, the poles e and d tend to take along the poles h and i of the second external magnet through the relatively thin wall dei: capsule a. With the help of the axis g and the roller k , the measuring movement is passed on. If the working path of b is limited to a little less than a full turn, then each position of b will correspond to only one position of f , and there will be practically no position in which those from d and e to h and i are not Lines of force strive to bring the pair of magnets into the correct, mutually determined position. When the movement of A and f is not less - than one revolution is limited or if multiple pairs of magnets are arranged in c and g, as will become apparent immediately more positions in which the clutch holds. The position of the system is no longer clearly defined in relation to one another. The latter is only the case when the symmetrically arranged increase in the number of magnet pairs goes hand in hand with a quadratic reduction in the angle of rotation. For two magnet pairs, only a movement of the axes c and g of less than a quarter turn is permissible.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH90990D DE472409C (en) | Device for transmitting a rotating measuring movement from a closed vessel to the outside with the help of a magnetic field |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH90990D DE472409C (en) | Device for transmitting a rotating measuring movement from a closed vessel to the outside with the help of a magnetic field |
Publications (1)
Publication Number | Publication Date |
---|---|
DE472409C true DE472409C (en) | 1929-11-21 |
Family
ID=7166039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH90990D Expired DE472409C (en) | Device for transmitting a rotating measuring movement from a closed vessel to the outside with the help of a magnetic field |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE472409C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1174522B (en) * | 1959-10-23 | 1964-07-23 | Continental Elektro Ind Ag | Device for the magnetic coupling of two rotatably mounted levers through a housing wall |
DE1208900B (en) * | 1961-01-30 | 1966-01-13 | Licentia Gmbh | Arrangement for the control of additional devices for consumption meters |
-
0
- DE DEH90990D patent/DE472409C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1174522B (en) * | 1959-10-23 | 1964-07-23 | Continental Elektro Ind Ag | Device for the magnetic coupling of two rotatably mounted levers through a housing wall |
DE1208900B (en) * | 1961-01-30 | 1966-01-13 | Licentia Gmbh | Arrangement for the control of additional devices for consumption meters |
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