DE549768C - Device for the transmission of movements, especially for the purposes of length or strain measurement - Google Patents
Device for the transmission of movements, especially for the purposes of length or strain measurementInfo
- Publication number
- DE549768C DE549768C DENDAT549768D DE549768DD DE549768C DE 549768 C DE549768 C DE 549768C DE NDAT549768 D DENDAT549768 D DE NDAT549768D DE 549768D D DE549768D D DE 549768DD DE 549768 C DE549768 C DE 549768C
- Authority
- DE
- Germany
- Prior art keywords
- coils
- movements
- transmission
- purposes
- length
- 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
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
- G01B7/24—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge using change in magnetic properties
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Description
Vorrichtung zur Übertragung von Bewegungen, besonders zu Zwecken - der Längen- bzw. Dehnungsmessung Bei den bisher bekannten Meßgeräten von der Art des Erfindungsgegenstandes liegen die Spulen, Magnete oder Magnetkerne symmetrisch um eine Linie geordnet, und die Richtung der zu übertragenden Bewegung fällt mit dieser Linie zusammen.Device for the transmission of movements, especially for purposes - the length or strain measurement. In the previously known measuring devices of the type of the subject matter of the invention, the coils, magnets or magnetic cores are symmetrical arranged around a line, and the direction of the movement to be transmitted coincides with it this line together.
Unter solchen Verhältnissen wird die Bewegung nicht in proportionaler Weise übertragen, sondern nach Maßgabe der Feldänderung entstehen Abhängigkeiten, die durch eine gekrümmte Kennlinie ausgedrückt werden. Dieses Verhalten ist bei Messungen in del Praxis störend, denn diese gekrümmte Kennlinie unterliegt meistens den Einflüssen der vorhandenen Eisenmassen und der benutzten Stromquellen. -Die Erfindung betrifft hingegen eine Vorrichtung, die eine gerade Kennlinie hervorruft, wenn zwei Spulen zueinander bewegt werden. Außerdem ist die Vorrichtung empfindlich genug, um auf kleinste Bewegungen zu reagieren, wie es z. B. bei Dehnungsmessungen erforderlich ist. Will man z. B. die Bewegung eines Körpers auf einen Zeiger übertragen, so werden die Stellungen der Spulen zueinander, die sich am Objekt befinden, in ausreichender linearer Vergrößerung auf einem Zeigerinstrument wiedergegeben. An Stelle eines Zeigers kann eine andere bewegliche Vorrichtung ihre Lage gegenüber einem Festpunkte verändern.Under such conditions the motion does not become more proportional Transferred wisely, but depending on the field change, dependencies arise, which are expressed by a curved characteristic. This behavior is with Measurements in practice disruptive, because this curved characteristic is usually subject to the influences of the existing iron masses and the power sources used. -The In contrast, the invention relates to a device that produces a straight characteristic curve, when two coils are moved towards each other. In addition, the device is delicate enough to react to the smallest movements, such as B. for strain measurements is required. Do you want to z. B. transfer the movement of a body to a pointer, so the positions of the coils to each other, which are located on the object, are in reproduced with sufficient linear magnification on a pointer instrument. At Instead of a pointer, another movable device can be opposite its position change a fixed point.
Der Hauptpunkt der Erfindung liegt in der Anordnung der Spulen zueinander. Die Spulen sollemeinen Winkel zueinander bilden, z. B. einen rechten Winkel. Alsdann werden nach den Versuchsresultaten die geschilderten Vorteile erreicht. Die Abbildung zeigt in einem allgemeinen Schema ein Ausführungsbeispiel.The main point of the invention lies in the arrangement of the coils with respect to one another. The coils should form my angle to one another, e.g. B. a right angle. Then the advantages described are achieved according to the test results. The illustration shows an exemplary embodiment in a general diagram.
An die zu übertragende Bewegung nehmen die Spulen d und b teil, allgemein dergestalt, daß durch die Bewegung der Spulen deren Lagen zueinander verändert werden. Die Vorrichtung soll diese Lagenveränderung übertragen, damit an einer anderen Stelle ein Körper eine ähnliche, jedenfalls proportionale Lagenveränderung erfährt, z. B. durch Stellung eines Zeigers beim Instrument c. Die Spulen werden grundsätzlich nur so angeordnet, daß sie sich zueinander nur in Richtung der Doppelpfeile d bewegen können. Sinngemäß kann auch eine Spule festgelegt werden, worauf nur die zweite Spule an der Bewegung teilnimmt.The coils d and b take part in the movement to be transmitted, in general in such a way that the movement of the coils changes their positions relative to one another. The device is intended to transfer this change in position to a different location a body experiences a similar, at least proportional change in position, e.g. B. by position of a pointer on the instrument c. The coils are basically only arranged so that they only move relative to one another in the direction of the double arrows d can. Similarly, a coil can also be specified, whereupon only the second Coil participates in the movement.
Die Spulen a und b bilden mit ihren Längsachsen einen Winkel zueinander. Die Spule d ist durch die Leitungen e in bekannter Weise mit einem Wechselstromnetz oder mit wechselndem Gleichstrom in Verbindung gebracht. Die Spule b ist, wie bei ähnlichen Vorrichtungen bekannt, in den Gitterstromkreis eines Röhrenverstärkers g eingeschaltet. Die Erfahrung -lehrt nun, daß durch die Bewegung der beiden Spulen a und b zueinander in Richtung der Doppelpfeile d eine der Bewegung proportionale Steuerung des Anodenstromes beim Röhrenverstärker g eingeleitet wird. Der Anodenstrom setzt den Zeiger des Instrumentes c in Tätigkeit.The coils a and b form an angle to one another with their longitudinal axes. The coil d is connected in a known manner to an alternating current network or to alternating direct current through the lines e. As is known in similar devices, the coil b is connected to the grid circuit of a tube amplifier g. Experience now teaches that by moving the two coils a and b to one another in the direction of the double arrows d, a control of the anode current in the tube amplifier g that is proportional to the movement is initiated. The anode current activates the pointer of the instrument c.
Die 1,Ybertragung der bei den ,Spulen und b entstandenen Bewegung auf den Zeiger des Instrumentes c kann bei richtiger Wahl des Instrumentes c, z. B. Drehspulinstrument, proportional erfolgen. Dieses läßt sich dahin erweitern, daß auch andere vom Anodenstrom abhängige bewegliche Gegenstände ihre Lage gegenüber einem Festpunkte ändern können.The 1, transmission of the movement created by the, coils and b on the pointer of the instrument c can with the correct choice of the instrument c, z. B. moving coil instrument, done proportionally. This can be expanded to that other movable objects dependent on the anode current also have their position opposite a fixed point can change.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE549768T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE549768C true DE549768C (en) | 1932-05-02 |
Family
ID=6562420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT549768D Expired DE549768C (en) | Device for the transmission of movements, especially for the purposes of length or strain measurement |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE549768C (en) |
-
0
- DE DENDAT549768D patent/DE549768C/en not_active Expired
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