DE801864C - Method and device for measuring elongations in rubber objects - Google Patents

Method and device for measuring elongations in rubber objects

Info

Publication number
DE801864C
DE801864C DEP55032A DEP0055032A DE801864C DE 801864 C DE801864 C DE 801864C DE P55032 A DEP55032 A DE P55032A DE P0055032 A DEP0055032 A DE P0055032A DE 801864 C DE801864 C DE 801864C
Authority
DE
Germany
Prior art keywords
rubber
objects
rubber objects
measuring
elongations
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
DEP55032A
Other languages
German (de)
Inventor
Heinz Adolf Dipl-Ing Ludewig
Hans Dipl-Ing Roemer
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.)
Continental AG
Original Assignee
Continental Gummi Werke 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 Continental Gummi Werke AG filed Critical Continental Gummi Werke AG
Priority to DEP55032A priority Critical patent/DE801864C/en
Application granted granted Critical
Publication of DE801864C publication Critical patent/DE801864C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/007Wheeled or endless-tracked vehicles
    • G01M17/02Tyres
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/14Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
    • G01L1/142Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators using capacitors

Landscapes

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

Description

Verfahren und Vorrichtung zur Messung von Dehnungen in Gummigegenständen Die vorliegende erfinfung betrifft ein Vetrfahren zur dehnungsmesdsung an oder in elastich verformbaren Gegensänden, wie z. B. Fahrzeuhreifen oder sonstigen Gummigegenständen. die unter Gebrauchsbedingungen entsprechenden Verhältnissen untersucht werden sollen. Dehnungsmessungen konnten an solchen gegeständen bischer im allgemeinen nur bei statischen versuchen, nicht aber bei dynamischen Vorgängen, vorgenommen werden.Method and device for measuring elongations in rubber objects the The present invention relates to a method for measuring strain on or in elastic deformable objects, such. B. Vehicle tires or other rubber objects. the corresponding conditions under the conditions of use are to be investigated. In general, strain measurements on such objects were only possible at static attempts, but not dynamic processes.

Die Erfindung beschreitet einen neuen Weg, indem auf Längenänderung ansl)rechende Kondensatoren mit verändelicher Kapazität in die Gummigegenstände eingebrettet und die kapazutätsänderungen bei Formäderungen der Gummigegenstände gemessen werden. Die verändellichen Kondensatoren werden dal)ei el)enfalls aus Gummi oder einem sich gleichartig verhaltenden Stoff hergestellt. 1 In der einfachsten Form besteht ein solcher Kondensator aus einer Schicht von elektrisch isolierenden Gummi, mit dem heiderseits je eine Schicht aus elektrisch letfähigen Gummi verklebt oder zusammenvulkanisiert ist. Die elektrischen Anschlusse können beliebig, z. B. durch einbettung von Drahtenden, in die eektrisch leitfähigen Gummischichten hergestellt werden. Ein solcher ganz o(ler fast ganz aus Gummi hergestellter veränderlicher Kondensator eignet sich hervorragend zur lLösung der gestellten Audgabe, da er in dem zu untersuchenden Gummigegenstand nicht als Fremdkörper wirkt und die Verformungsverhältnisse des Gummigegenstandes nicht verfälscht. Er kann auf einfachste Weise mit dem Gummigegenstand durch Einvulkanisieren oder Verkleben verbunden werden, so daß sich mechaniche Übertragungsfehler o. dgl. nicht einstellen können. Bei Dehnungen des Gummigegenstandes dehnt sich der Kondensator, der etwa Streifenform besitzt, mit. Dadurch vergrößert sich die Fläche der Beläge und verringert sich die Dicke der elektrisch isolierenden Gummischicht. Beide Vorgänge wirken zusammen im Sinne einer Kapazitätszunahme. The invention breaks new ground by changing length ansl) calculating capacitors with variable capacitance in the rubber objects embedded and the capacitance changes when the shape of the rubber objects is changed be measured. The variable capacitors are then also made of rubber or a similarly behaving substance. 1 In the simplest Form, such a capacitor consists of a layer of electrically insulating Rubber with a layer of electrically conductive rubber bonded to each side or vulcanized together. The electrical connections can be arbitrary, e.g. B. by embedding wire ends in the electrically conductive rubber layers will. Such a changeable one made almost entirely of rubber Capacitor is ideally suited for the solution of the given output, since it is in the rubber object to be examined does not act as a foreign body and the deformation conditions of the rubber object is not falsified. He can use the rubber object in the simplest possible way be connected by vulcanizing or gluing, so that mechanical transmission errors or the like not can adjust. When the rubber object is stretched the capacitor, which is roughly in the form of a strip, expands with it. This enlarged the area of the coverings and the thickness of the electrically insulating decreases Rubber layer. Both processes work together to increase capacity.

An Stelle von zwei leitenden Schichten und einem Dielektrikum können auch mehrere Isolierschichten und eine entsprechende Vielzahl von leitenden Belägen verwendet werden, die wechselweise miteinander verbunden sind, wie es sonst bei veränderlichen Kondensatoren üblich ist. Instead of two conductive layers and a dielectric, you can also several layers of insulation and a corresponding number of conductive coverings that are alternately connected to each other, as is otherwise the case with variable capacitors is common.

Das erfindungsgemäße Verfahren ist in seiner Anwendung keineswegs auf die Dehnungsmessung von Gummigegenständen beschränkt, sondern kann auch sonst vielfältig Anwendung finden, wobei unter Umständen eine mechanische Verbindung des Gummikondensators mit dem Meßgegenstand hergestellt werden muß. Ebenso kann der Gummikondensator als selbständiges Element für vielfache Zwecke Anwendung finden, wo ein Kondensator mit veränderlicher Kapazität benötigt wird. The method according to the invention is by no means in its application limited to the strain measurement of rubber objects, but can also be used otherwise Find diverse applications, with a mechanical connection of the Rubber capacitor must be made with the object of measurement. The Rubber capacitor can be used as an independent element for multiple purposes, where a variable capacitance capacitor is needed.

PATENTANSPRiCHE: I. Verfahren zur Messung von Dehnungen in Gummigegenständen, wie z. B. Fahrzeugreifen, dadurch gekennzeichnet, daß auf Längenänderung ansprechende Kondensatoren mit veränderlicher Kapazität in die Gummigegenstände eingebettet oder angeheftet und die Kapazitätsänderungen bei Formänderungen der Gummigegenstände gemessen werden. PATENT CLAIMS: I. Method for measuring elongations in rubber articles, such as B. vehicle tires, characterized in that responsive to change in length Variable capacitance capacitors embedded in the rubber articles or and the changes in capacitance when the rubber objects change shape be measured.

Claims (1)

2. Kondensator mit veränderlicher Kapazität, bestehend aus Schichten von elektrisch leitfähigem Gummi, zwischen denen sich eine oder mehrere Schichten von elektrisch isolierendem Gummi befinden. 2. Variable capacitance capacitor made up of layers of electrically conductive rubber, between which there are one or more layers electrically insulating rubber.
DEP55032A 1949-09-16 1949-09-16 Method and device for measuring elongations in rubber objects Expired DE801864C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP55032A DE801864C (en) 1949-09-16 1949-09-16 Method and device for measuring elongations in rubber objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP55032A DE801864C (en) 1949-09-16 1949-09-16 Method and device for measuring elongations in rubber objects

Publications (1)

Publication Number Publication Date
DE801864C true DE801864C (en) 1951-01-25

Family

ID=7387494

Family Applications (1)

Application Number Title Priority Date Filing Date
DEP55032A Expired DE801864C (en) 1949-09-16 1949-09-16 Method and device for measuring elongations in rubber objects

Country Status (1)

Country Link
DE (1) DE801864C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1062032B (en) * 1957-05-06 1959-07-23 Veruschacht Vereinigte Unterta Process for the determination and measurement of stresses and / or deformations in mountain and building structures
WO2002057711A1 (en) * 2001-01-10 2002-07-25 Societe De Technologie Michelin Method and device for evaluating deformations and forces
WO2007002266A2 (en) * 2005-06-22 2007-01-04 Purdue Research Foundation Structures with integral life-sensing capability
EP2375099A3 (en) * 2010-04-08 2014-04-09 ContiTech Luftfedersysteme GmbH Elastomer products, in particular pneumatic springs, with a sensor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1062032B (en) * 1957-05-06 1959-07-23 Veruschacht Vereinigte Unterta Process for the determination and measurement of stresses and / or deformations in mountain and building structures
WO2002057711A1 (en) * 2001-01-10 2002-07-25 Societe De Technologie Michelin Method and device for evaluating deformations and forces
CN100362314C (en) * 2001-01-10 2008-01-16 米其林技术公司 Method and device for evaluating deformations and forces
US7752904B2 (en) 2005-03-04 2010-07-13 Purdue Research Foundation Structures with integral life-sensing capability
WO2007002266A2 (en) * 2005-06-22 2007-01-04 Purdue Research Foundation Structures with integral life-sensing capability
WO2007002266A3 (en) * 2005-06-22 2007-04-05 Purdue Research Foundation Structures with integral life-sensing capability
JP2008546590A (en) * 2005-06-22 2008-12-25 パーデュ リサーチ ファンデーション Structure with integrated life detection capability
CN101248343B (en) * 2005-06-22 2011-03-16 普渡研究基金会 Structures with integral life-sensing capability
JP4686603B2 (en) * 2005-06-22 2011-05-25 パーデュ リサーチ ファンデーション Structure with integrated life detection capability
EP2375099A3 (en) * 2010-04-08 2014-04-09 ContiTech Luftfedersysteme GmbH Elastomer products, in particular pneumatic springs, with a sensor

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