DE741193C - Electromagnetic double choke for measuring length and angle changes - Google Patents

Electromagnetic double choke for measuring length and angle changes

Info

Publication number
DE741193C
DE741193C DER110800D DER0110800D DE741193C DE 741193 C DE741193 C DE 741193C DE R110800 D DER110800 D DE R110800D DE R0110800 D DER0110800 D DE R0110800D DE 741193 C DE741193 C DE 741193C
Authority
DE
Germany
Prior art keywords
angle changes
measuring length
double
double throttle
armature
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
DER110800D
Other languages
German (de)
Inventor
Dipl-Ing Dr Techn Josef Ratzke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JOSEF RATZKE DIPL ING DR TECHN
Original Assignee
JOSEF RATZKE DIPL ING DR TECHN
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 JOSEF RATZKE DIPL ING DR TECHN filed Critical JOSEF RATZKE DIPL ING DR TECHN
Priority to DER110800D priority Critical patent/DE741193C/en
Application granted granted Critical
Publication of DE741193C publication Critical patent/DE741193C/en
Expired legal-status Critical Current

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
    • G01D5/12—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 electric or magnetic means
    • G01D5/14—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 electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—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 electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/22—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 electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
    • G01D5/2208—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 electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the self-induction of the coils
    • G01D5/2216—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 electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils by influencing the self-induction of the coils by a movable ferromagnetic element, e.g. a core

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Description

Elektromagnetische Doppeldrossel zur Messung von Längen- und Winkeländerungen Die bekannten, der Längenänderungsmes-Sung dienenden elektromagnetischen Doppeldrosseln erfüllen die an sie gestellten Forderungen nur zum Teil. Sie sollen mit einer sehr kleinen Meßstrecke auskommen, ein sehr kleines Gewicht aufweisen und ohne nennenswerte VerstärkereinrichtungenLängenänderungen, wie z. B. dufch- Zug, Druck oder Schubbeanspruchungen entstandene Längenänderungen zu messen gestatten.Electromagnetic double choke for measuring changes in length and angle The well-known electromagnetic double chokes used to measure the length change only partially meet the demands placed on them. You are supposed to be with a very make do with a small measuring distance, have a very low weight and without any noteworthy Amplifier devices Length changes, e.g. B. dufch- train, pressure or shear stresses allow changes in length to be measured.

Die bekannten Geräte vorgenannter Art sind jedoch verhältnismäßig groß und schwer und benötigen auch eine größere Meßstrecke. However, the known devices of the aforementioned type are proportionate large and heavy and also require a longer measuring distance.

Die Erfindung hat eine Doppeldrossel zum Gegenstand, die den an sie gestellten Forderungen gerecht wird; sie ist sehr klein und leicht und bringt trotz kleinster Meßstrecke auswertbare Meßergebnisse. The invention has a double throttle to the subject that on them meets the demands made; it is very small and light and brings despite smallest measuring distance evaluable measurement results.

Sie erreicht dies dadurch, daß das Spulen oder Magnetsystem durch einen durch den Anker durchgreifenden unmagnetischen Teil zusammengehalten wird. Hierdurch kann der unmagnetische Teil sehr klein gehalten werden, und es können alle die Teile der Doppeldrossel, die hinsichtlich des Gewichts eine Rolle spielen, zur Leitung des Flusses herangezogen werden. You achieve this by having the coils or magnet system through a non-magnetic part penetrating through the armature is held together. As a result, the non-magnetic part can be kept very small, and it can all the parts of the double throttle that play a role in terms of weight, can be used to manage the river.

Dieser VQrteil der Erfindung geht ohne weiteres daraus hervor, daß bei den bisher bekannten Doppeldrosseln zwei ineinandergleitende Hohlzylinder verwendet werden, von denen der eine das System und der andere den Anker tragen. Beide Hohlzylinder werden hierbei nicht zur Leitung des Flusses herangezogen. so daß sie das Gewicht der Drossel ungünstig beeinflussen. This VQrteil the invention is readily apparent from the fact that in the case of the previously known double throttles, two hollow cylinders sliding into one another are used one of which carries the system and the other the anchor. Both hollow cylinders are not used to manage the river. so they hold the weight affect the throttle unfavorably.

Der Anker der erfindungsgemäßen Doppeldrossel kann in einem rohrartigen Gebilde aus magnetischem Material untergebracht sein, wobei die Doppeldrossel in diesem rohrartigen Gebilde gleiten kann. Das rohrartige Gebilde kann zum magnetischen Rückschluß verwendet werden. The armature of the double throttle according to the invention can be in a tubular Buildings made of magnetic material can be accommodated, the double throttle in this tubular structure can slide. The tubular structure can become magnetic Inference can be used.

In den Abbildungen sind zwei Ausführungsbeispiele der Erfindung schematisch und teilweise im Schnitt dargestellt. Two exemplary embodiments of the invention are shown schematically in the figures and shown partially in section.

Das rohrartige Gebilde 1 ist an dem zu überprüfenden Teil 2 befestigt. Es schließt die Doppeldrossel in sich ein. die aus den beiden Spulen 3 und 4 gebildet wird. Dic Spulen werden durch den unmagnetischen Teil 5 zusammengehalten. der in dem Rohr 6 befestigt ist. Dieser ist ebenfalls auf dem zu messenden Teil 2 angeordnet. Zwischen den beiden Spulen ist der Anker 7 angeordnet, durch dessen Aussparung 8 der unmagnetische Teil 5 hindurchführt. The tubular structure 1 is attached to the part 2 to be checked. It closes the double throttle in itself. those from the two coils 3 and 4 is formed. The coils are held together by the non-magnetic part 5. which is fixed in the tube 6. This is also on the part to be measured 2 arranged. The armature 7 is arranged between the two coils, through which Recess 8 the non-magnetic part 5 passes through.

Bei einer Dehnung des zu prüfenden Teils 2 tritt eine elektrisch zu messende Verschiebung zwischen dem Anker 7 und der Doppeldrossel 3, 4 ein. Diese relative Verschiebung zwischen den beiden Teilen wird über eine Wechselstrombrücke in an sich bekannter Art ausgewertet. When the part 2 to be tested is stretched, an electrical shock occurs the displacement to be measured between the armature 7 and the double throttle 3, 4. These relative displacement between the two parts is via an AC bridge evaluated in a manner known per se.

Bei dem Ausführungsbeispiel nach Abb. 2 ist der Anker a und das System 9 mit dem Prüfling 2 verbunden. I)as System 9 trägt hierbei Doppeldrosseln 3, 4, die wiederum durch einen durch den Anker hindurchgreifenden unmagnetischen Teil 5 zusammengehalten werden. Dieses Gerät arbeitet wie das vorbeschriebene. In the embodiment of Fig. 2, the anchor is a and the system 9 connected to the test item 2. I) as system 9 has double throttles 3, 4, which in turn by a non-magnetic part reaching through the armature 5 are held together. This device works like the one described above.

Die Geräte der Erfindung reagieren auf Längenänderungen, die auf Grund von Zug, Druck, Schub oder ähnlichen statischen bzw. dynamischen Beanspruchungen entstehen. The devices of the invention respond to changes in length on the Reason for tension, pressure, thrust or similar static or dynamic loads develop.

Sinngemäß kann der Gegenstand der Erfindung natürlich aüch zur Messung der Änderung von Winkelgrößen verwendet werden. The subject matter of the invention can of course also correspond to measurement the change of angle sizes can be used.

Das für diesen Zweck bestimmte Gerät ist hierbei zweckmäßig rund ausgebildet, damit es um die Ecken herumgreifen kann.The device intended for this purpose is expediently round, so it can reach around the corners.

Claims (4)

P A T E N T A N S P R Ü C H E : 1. Elektromagnetische Doppel drossel zur Messung von Längen- und Winkeländerungen, dadurch gekennzeichnet, daß der das System zusammenhaltende unmagnetische Teil durch eine Aussparung des Ankers hindurchgeführt ist. P A T E N T A N S P R Ü C H E: 1. Electromagnetic double throttle for measuring length and angle changes, characterized in that the Non-magnetic part holding the system together passed through a recess in the armature is. 2. Doppeldrossel nach Anspruch 1, dadurch gekennzeichnet, daß der Anker von einem Hohlzylinder getragen wird. -in dem das Drosselsystem gleitet. 2. Double throttle according to claim 1, characterized in that the Anchor is carried by a hollow cylinder. -in which the throttle system slides. 3. Doppel drossel nach Anspruch I oder 2. dadurch gekennzeichnet. daß der den Anker tragende Hohlzylinder dem magnetischen Rückschluß dient. 3. Double throttle according to claim I or 2. characterized. that the hollow cylinder carrying the armature is used for the magnetic return path. 4. Doppeldrossel nach Anspruch 1. gekennzeichnet durch eine derartige Ausbildung des Ankers. dal> er unmittelbar an dem Prüfling befestigt werden kann. 4. Double throttle according to claim 1, characterized by such Training the anchor. because it can be attached directly to the test item. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik sind im Erteilungsverfahren keine Druckschriften in Betracht gezogen worden: To distinguish the subject of the application from the state of the art are no publications were considered in the granting procedure:
DER110800D 1941-08-17 1941-08-17 Electromagnetic double choke for measuring length and angle changes Expired DE741193C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DER110800D DE741193C (en) 1941-08-17 1941-08-17 Electromagnetic double choke for measuring length and angle changes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER110800D DE741193C (en) 1941-08-17 1941-08-17 Electromagnetic double choke for measuring length and angle changes

Publications (1)

Publication Number Publication Date
DE741193C true DE741193C (en) 1943-11-06

Family

ID=7421880

Family Applications (1)

Application Number Title Priority Date Filing Date
DER110800D Expired DE741193C (en) 1941-08-17 1941-08-17 Electromagnetic double choke for measuring length and angle changes

Country Status (1)

Country Link
DE (1) DE741193C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE906125C (en) * 1945-05-28 1954-03-11 Landis & Gyr Ag Electrical regulation and control unit
DE1025645B (en) * 1953-01-21 1958-03-06 Wacker Hermann Electromagnetic device for measuring mechanical forces in statically or dynamically stressed components
DE1084816B (en) * 1958-01-21 1960-07-07 Intron Leipzig Veb Adjustment arrangement for an inductive encoder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE906125C (en) * 1945-05-28 1954-03-11 Landis & Gyr Ag Electrical regulation and control unit
DE1025645B (en) * 1953-01-21 1958-03-06 Wacker Hermann Electromagnetic device for measuring mechanical forces in statically or dynamically stressed components
DE1084816B (en) * 1958-01-21 1960-07-07 Intron Leipzig Veb Adjustment arrangement for an inductive encoder

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