DE2539345A1 - High sensitivity force measurement ring - has large wall openings for increased sensitivity and gauges for simultaneous measurement of compression and rotation forces - Google Patents
High sensitivity force measurement ring - has large wall openings for increased sensitivity and gauges for simultaneous measurement of compression and rotation forcesInfo
- Publication number
- DE2539345A1 DE2539345A1 DE19752539345 DE2539345A DE2539345A1 DE 2539345 A1 DE2539345 A1 DE 2539345A1 DE 19752539345 DE19752539345 DE 19752539345 DE 2539345 A DE2539345 A DE 2539345A DE 2539345 A1 DE2539345 A1 DE 2539345A1
- Authority
- DE
- Germany
- Prior art keywords
- ring
- compression
- measurement
- gauges
- force measurement
- 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- Withdrawn
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)
- Measurement Of Force In General (AREA)
Abstract
Description
zusa'4zzmGS Kraftmeßring Die Erfindung betrifft einen Kraftmeßring der beispielsweise zur Messung der Belastungskräfte von Druckschrauben, Zugankern, Säulen, Spindeln, Wellen u.s.w. verwendet wird. Solche Xraftmeßringe, insbesondere für niedere Meßbereiche bei verhältnismäßig großem Durchmesser, sind nach der Hauptanmeldung P 23 57 484 bekannt.Zusa'4zzmGS force measuring ring The invention relates to a force measuring ring which is used, for example, to measure the loading forces of pressure screws, tie rods, Columns, spindles, shafts, etc. is used. Such Xraftmeßringe, in particular for lower measuring ranges with a relatively large diameter, are according to the main application P 23 57 484 known.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde einen Kraftmeßring zu schaffen für besonders niedere Meßbereiche bei gleichzeitig großem Ringdurchmesser und kleiner Ringbreite.The present invention is based on the object of a force measuring ring To be created for particularly low measuring ranges with a large ring diameter at the same time and smaller ring width.
Nach der Offenlegungsschrift 23 57 484 werden Burchbrüche 11-12 in dem zur Messung dienenden Stauchzylinder, zum Zwecke der Anbringung von Dehnungsmeßstreifen (DMS) in der Mitte der zu stauchenden Zylinderwand, angeordnet. Einer Verkleinerung des Meßbereiches durch Verringerung der Wandstärke sind Grenzen gesetzt wegen der Gefahr des Ausknickens.According to laid-open specification 23 57 484, breakthroughs 11-12 in the compression cylinder used for measurement, for the purpose of attaching strain gauges (DMS) in the middle of the cylinder wall to be compressed. A reduction the measuring range by reducing the wall thickness are limited because of the Risk of buckling.
Anhand der ein vereinfachtes Ausführungsbeispiel des Kraftmeßringes darstellenden Figuren 1, 2 und 3 soll die Erfindung im folgenden näher beschrieben werden.Using a simplified embodiment of the force measuring ring Illustrative Figures 1, 2 and 3, the invention is to be described in more detail below will.
Der erfindungsgemäße Kraftmeßring zeichnet sich dadurch aus, daß man bei einem verhältnismäßig großen Ringdurchmesser und möglichst kleinem Meßbereich eine genügend große Stauchempfindlichkeit dadurch erhält, daß ein Teil der Wandung 1 mit großen Durchbrüchen 2 (Fenstern) versehen wird. Bei z.B. 50 % Durchbrüchen steigt die Meßempfindlichkeit bei gleicher Last um loo %. Eine weitere Aufgabe der Erfindung besteht darin, das Problem des elektrischen Kabelanschlußes zu vereinfachen und sicher zu machen.The force measuring ring according to the invention is characterized in that one with a relatively large ring diameter and the smallest possible measuring range a sufficiently high sensitivity to compression is obtained by the fact that part of the wall 1 is provided with large openings 2 (windows). With e.g. 50% breakthroughs the measuring sensitivity increases by 100% with the same load. Another task of the Invention is to simplify the problem of electrical cable connection and make sure.
Die Querstabilität der Kraftmeßringe und die Biegesteifigkeit der zu stauchenden Wandung bleibt im ausreichenden Maße erhalten.The transverse stability of the force washers and the rigidity of the The wall to be compressed is retained to a sufficient extent.
Die gleichen oder gleichwirkende Ausnehmungen 3 können auch in den Stegen 4 eingebracht werden.The same or equivalent recesses 3 can also be in the Web 4 are introduced.
Da die sehr dünnen Wandungen 1 für die Befestigung der Kabeldurchführung 5 u.U. zu schwach sind, wird die Kabeldurchfuhrung 5 in einem Durchbruch 2 plaziert und mit dem Stabilisierungsrlng 6 verschweißt, verschraubt oder anderweitig befestigt.Because the very thin walls 1 for attaching the cable bushing 5 may be too weak, the cable bushing 5 is placed in an opening 2 and welded, screwed or otherwise fastened to the stabilization ring 6.
Für gleichzeitiges Messen von Stauch-und von Verdrehkräften sind die entsprechenden DMS 7 und 8 abwechselnd auf den restlichen Wandteilen 1 befestigt.For simultaneous measurement of compression and torsional forces are the corresponding strain gauges 7 and 8 alternately attached to the remaining wall parts 1.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752539345 DE2539345A1 (en) | 1975-09-04 | 1975-09-04 | High sensitivity force measurement ring - has large wall openings for increased sensitivity and gauges for simultaneous measurement of compression and rotation forces |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752539345 DE2539345A1 (en) | 1975-09-04 | 1975-09-04 | High sensitivity force measurement ring - has large wall openings for increased sensitivity and gauges for simultaneous measurement of compression and rotation forces |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2539345A1 true DE2539345A1 (en) | 1977-03-10 |
Family
ID=5955579
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19752539345 Withdrawn DE2539345A1 (en) | 1975-09-04 | 1975-09-04 | High sensitivity force measurement ring - has large wall openings for increased sensitivity and gauges for simultaneous measurement of compression and rotation forces |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2539345A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT390327B (en) * | 1988-08-18 | 1990-04-25 | Brosa Erich | Annular compression-force measuring cell |
DE102018130303A1 (en) * | 2018-11-29 | 2020-06-04 | Bayerische Motoren Werke Aktiengesellschaft | Measuring device and measuring arrangement |
-
1975
- 1975-09-04 DE DE19752539345 patent/DE2539345A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT390327B (en) * | 1988-08-18 | 1990-04-25 | Brosa Erich | Annular compression-force measuring cell |
DE102018130303A1 (en) * | 2018-11-29 | 2020-06-04 | Bayerische Motoren Werke Aktiengesellschaft | Measuring device and measuring arrangement |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8141 | Disposal/no request for examination |