DE3904714A1 - Force-measuring ring - Google Patents

Force-measuring ring

Info

Publication number
DE3904714A1
DE3904714A1 DE19893904714 DE3904714A DE3904714A1 DE 3904714 A1 DE3904714 A1 DE 3904714A1 DE 19893904714 DE19893904714 DE 19893904714 DE 3904714 A DE3904714 A DE 3904714A DE 3904714 A1 DE3904714 A1 DE 3904714A1
Authority
DE
Germany
Prior art keywords
ring
force measuring
measuring ring
ring according
membranes
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.)
Withdrawn
Application number
DE19893904714
Other languages
German (de)
Inventor
Erich Brosa
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19893904714 priority Critical patent/DE3904714A1/en
Publication of DE3904714A1 publication Critical patent/DE3904714A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • G01L1/2231—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being disc- or ring-shaped, adapted for measuring a force along a single direction

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

Published without abstract.

Description

Zweck der Erfindung ist, einen hochempfindlichen Kraftmeßring für niedere Meßbereiche herzustellen, der für die eingebauten Meßelemente absolut gas- und wasserdicht ist und einen stabilen Kabelanschluß besitzt.Purpose of the invention is a highly sensitive force measuring ring for low To produce measuring ranges that are absolutely gas-free for the built-in measuring elements and is waterproof and has a stable cable connection.

Es sind ähnliche Meßringe bekannt, die bei dünnen Biegefedern keinen stabilen Kabelanschluß haben und nicht absolut dicht sind.Similar measuring rings are known which do not exist in the case of thin spiral springs have a stable cable connection and are not absolutely tight.

Der neue Kraftmeßring besitzt 2 dickwandige Ringe 1-2, die ineinander so verschachtelt sind, daß sie innen und außen verschweißbar und mit zwei parallel beweglichen Biegefedern 3-4, die mit DMS 5 bestückt sind, einen dichten großen Hohlraum 6 bilden, der auch einen Brückenverstärker und andere elektronische Bauteile 7, z.B. zur Temperatur-Kompensation, ent­ hält, Abb. 1-3.The new force measuring ring has 2 thick-walled rings 1-2 , which are nested in one another so that they can be welded inside and outside and with two parallel flexible springs 3-4 , which are equipped with strain gauges 5 , form a tight, large cavity 6 , which also forms one Bridge amplifier and other electronic components 7 , e.g. for temperature compensation, ent, Fig. 1-3.

An der Außenwand der dickwandigen Ringe 1-2 ist ein stabiler Kabelanschluß 8 dicht anschweißbar. Als Überlastschutz sind Anschläge 9 eingebaut, Abb. 2. Für Druck-Zugmessungen befinden sich Gewinde 10 in beiden Meßringteilen 1-2 für geeignete Anschlüsse. An einigen Stellen sind abdichtbare Durchgänge 11, um z.B. mechanische Vorbelastungen elektrisch zu korrigieren, Abb. 2. Ein eingedrehter Absatz 12, Abb. 1, dient einer ringförmigen Platine 13 für die Aufnehme elektronischer Bauteile 7, Abb. 3.A stable cable connection 8 can be tightly welded onto the outer wall of the thick-walled rings 1-2 . Stops 9 are installed as overload protection, Fig. 2. For pressure-tension measurements there are threads 10 in both measuring ring parts 1-2 for suitable connections. In some places there are sealable passages 11 , for example to electrically correct mechanical preloads, Fig. 2. A screwed-in shoulder 12 , Fig. 1, serves an annular plate 13 for receiving electronic components 7 , Fig. 3.

Claims (5)

1. Kraftmeßring, dadurch gekennzeichnet, daß je ein oberer und unterer Ring (1-2) mit inneren und äußeren Nuten (14-15) bzw. Ausdrehungen so versehen ist, daß sich beim Zusammenbau der Teile ein gemeinsamer ringförmiger Hohlraum (6) bildet, der oben und unten mit je einer ring­ förmigen, elastischen Membrane (3-4) abschließt, die auf Ihrer Innen­ seite mit DMS (5-) belegt sind und bei der Größe des wasserdicht ab­ geschlossenen Raumes (6), Meßverstärker und andere elektronische Bau­ teile (7), z.B. zur Temperatur-Kompensation, absolut dicht verschweißt oder verklebt, aufnimmt.1. Force measuring ring, characterized in that an upper and lower ring ( 1-2 ) with inner and outer grooves ( 14-15 ) or recesses is provided so that a common annular cavity ( 6 ) forms when assembling the parts , which closes at the top and bottom with a ring-shaped, elastic membrane ( 3-4 ), which are covered on their inside with strain gauges ( 5 -) and the size of the watertight space ( 6 ), measuring amplifier and other electronic Construction parts ( 7 ), e.g. for temperature compensation, absolutely tightly welded or glued, accommodates. 2. Kraftmeßring nach Anspruch 1, dadurch gekennzeichnet, daß in den Aus­ drehungen (14-15) Anschläge (9) eingebaut sind, um eine Überlastung der Ringfedern bzw. Membranen (3-4) zu verhindern. (Abb. 2)2. Force measuring ring according to claim 1, characterized in that in the rotations ( 14-15 ) stops ( 9 ) are installed in order to prevent overloading of the ring springs or membranes ( 3-4 ). ( Fig. 2) 3. Kraftmeßring nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Membranen (3-4) bei gleichzeitiger massiver Ausbildung der Hauptringe (1-2), insbesondere für niedere Meßbereiche geeignet sind und einen stabilen anschweißbaren Kabelanschluß (8) ermöglichen.3. Force measuring ring according to claim 1 and 2, characterized in that the membranes ( 3-4 ) with simultaneous massive formation of the main rings ( 1-2 ), are particularly suitable for low measuring ranges and enable a stable weldable cable connection ( 8 ). 4. Kraftmeßring nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß der obere und der untere Ringteil (1-2) mit je einem Gewinde (10) für geeignete Anschlüße für Zug-und Schubmessungen ausgebildet ist.4. Force measuring ring according to claim 1 to 3, characterized in that the upper and the lower ring part ( 1-2 ) are each formed with a thread ( 10 ) for suitable connections for tension and shear measurements. 5. Kraftmeßring nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß in einem Ring (2) für die Aufnahme einer Platine (13) für elektronische Bauteile ein Absatz (12) ausgedreht ist.5. Force measuring ring according to claim 1 to 4, characterized in that in a ring ( 2 ) for receiving a circuit board ( 13 ) for electronic components, a paragraph ( 12 ) is turned out.
DE19893904714 1989-02-16 1989-02-16 Force-measuring ring Withdrawn DE3904714A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893904714 DE3904714A1 (en) 1989-02-16 1989-02-16 Force-measuring ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19893904714 DE3904714A1 (en) 1989-02-16 1989-02-16 Force-measuring ring

Publications (1)

Publication Number Publication Date
DE3904714A1 true DE3904714A1 (en) 1990-08-23

Family

ID=6374255

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893904714 Withdrawn DE3904714A1 (en) 1989-02-16 1989-02-16 Force-measuring ring

Country Status (1)

Country Link
DE (1) DE3904714A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125580A1 (en) * 1991-08-02 1993-02-04 Schenck Ag Carl DEVICE FOR MEASURING FORCES
DE102009011949B3 (en) * 2009-03-10 2010-07-29 Hottinger Baldwin Messtechnik Gmbh Device for weight-dependent filling of containers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4125580A1 (en) * 1991-08-02 1993-02-04 Schenck Ag Carl DEVICE FOR MEASURING FORCES
DE102009011949B3 (en) * 2009-03-10 2010-07-29 Hottinger Baldwin Messtechnik Gmbh Device for weight-dependent filling of containers
WO2010102756A2 (en) 2009-03-10 2010-09-16 Hottinger Baldwin Messtechnik Gmbh Apparatus for filling containers according to weight
WO2010102756A3 (en) * 2009-03-10 2011-09-09 Hottinger Baldwin Messtechnik Gmbh Apparatus for filling containers according to weight

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Legal Events

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8139 Disposal/non-payment of the annual fee