Measuring element, measuring system, and method of providing a measuring element for measuring forces

Abstract

A measuring system for measuring forces, for instance spring forces in plug connections, has a measuring element with an advantageous geometric design and / or is formed in a way that it can assume several mechanical states corresponding to several measurement ranges, and / or is at least on the side of the force effect onto the measuring arms formed to have a firm connection of the measuring arms inorder to thus overall improve response sensitivity and / or exactness and / or resolution. Consequently, the measuring element according to the invention may fulfil criteria for the measuring system analysis and thus may create the conditions to obtain exact and reproducible measurement results for rating measurement objects.

Description

technical field [0001] The invention generally relates to the field of measurement technology, in particular forces with relatively small values, for example a few hundredths of a Newton to a few hundred Newtons, such as are required for measuring spring forces of contacts in plug connections. Background technique [0002] The measurement of relatively small forces, usually acting perpendicularly to the material, is an important problem in many technical fields in order to be able to make appropriate statements about the material points involved and / or the parts applying the force. An important field of application in this regard is the determination of contact forces in many types of connections, such as plug connections, where electrical and mechanical contact is usually produced by contact pins etc., which pass through the basic contact force produced by complementary contact elements. Loaded by vertical force. The resulting spring force has the function of creating and ...

AI Technical Summary

Problems solved by technology

[0005] The traditional systems described by way of example with reference to two printed documents do allow efficient determination of the spring force within a correspondingly limited measuring range, but due to the construction of the measuring cell, the response sensitivity and resolution as well as the measurement accuracy of the "direct" measuring system may be relatively low Low, in the case of frequently repeated measurements, due to unavoidable wear, changes in the overall geometry of the measuring cell occur, which can go unnoticed for a long time and in turn have an influence on the determined force

[0006] The previously described "indirect" measurement concept does allow a relatively accurate modeling of the actual conditions in the region of the measuring arm, i.e. the coupling between the corresponding plug connections can be modeled relatively realistically, but due to the geometry and the relatively long of strain gages, a reduced measurement accuracy must be expected

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