Measuring system, measuring arrangement and method for determining measuring signals during a penetration movement of a penetration body into a surface of a test body
A technology for measuring signals and driving devices, which can be used in measuring devices, testing material hardness, instruments, etc., and can solve problems such as large installation space, heavy weight, and expensive structure.
Inactive Publication Date: 2019-09-13
HELMUT FISCHER & INSTITUT FUR ELECTRONIK & MESSTECHN
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Problems solved by technology
[0004] This measuring device has the disadvantage that between the piezoelectric actuator and the indentation tip, a structurally more expensive and heavy plate consisting of a holding plate and a plate receiving the indenter as well as a plate respectively selected for support is arranged. Structure composed of leaf spring pairs
Not only does this require a large installation space, but the piezo drive is also designed correspondingly large in order to apply the force for controlling the pressing-in movement.
In addition, this measuring device is dull due to its expensive and structural construction
Furthermore, the measuring device is cost-intensive since the indenter is actuated by means of high-precision piezo-electric actuators
Method used
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[0069] exist figure 1 The measuring assembly 11 is shown schematically in . Such a measurement assembly 11 can be provided for testing mechanical and / or physical properties of a surface of a sample 14, such as a film, layer and / or coating on an item. For example, the measuring assembly 11 can be used as a hardness measuring device in which the hardness measurement is performed by pressing in by means of the indenter 41 of the measuring device 12 . Furthermore, such a measuring assembly 11 with a measuring device 12 can be provided for determining the scratch resistance of films, layers or coatings on objects. Here, for example, CVD coatings or PVD coatings can be tested for their scratch resistance. It is also possible to detect micro scratches or to detect and analyze additional deformation information of the surface. Such a measuring assembly 11 , in particular with the measuring device 12 , can also perform roughness measurements of the surface of the sample 14 without c...
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The invention relates to a measuring system, a measuring arrangement and a method for detecting measuring signals during a penetration movement of a penetration body (41) into a surface of a test body(14), in particular for hardness measurement or for determining the scratch resistance of the surface of the test body (14), or for detecting measuring signals during a scanning movement of the penetration body (41) on the surface of the test body (14), in particular for determining the surface roughness, comprising a housing (47) provided with a power generating device (44) which is operativelyconnected to a penetration body (41) for generating a displacement movement of the penetration body (41) along a displacement axis (48) of the penetration body (41) and which actuates a penetration movement of the penetration body (41) into the surface to be examined of the test body (14), or which positions the penetration body (41) on the surface of the test body (14) for scanning, and further comprising at least one first measuring device (78) for measuring the penetration depth in the surface of the test body (14) or a displacement movement of the penetration body (41) along its displacement axis (48) during a scanning movement on the surface of the test body (14), wherein the power generating device (44) actuates the displacement movement of the penetration body (41) by means of a magnetic force.
Description
technical field [0001] The invention relates to a measurement for detecting measurement signals during the indentation movement of the indenter into the surface of the sample and for determining the scratch resistance of the surface of the sample and for determining the surface roughness of the sample Apparatus and a measuring assembly and a method. Background technique [0002] From DE 699 17 780 T2 a measuring device and a method for measuring the scratch resistance of a surface of a test sample are known, which measuring device has a measuring table for receiving the test sample and a measuring device for removing the original Position transfer to the hand-operated device in the measuring position. In addition, a control device is provided, by means of which the measuring device controls both the displacement movement of the measuring table along an axis and the pressing movement of the indenter after the sample has been placed on the surface to be tested, so that during...
Claims
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IPC IPC(8): G01N3/46
CPCG01N3/46G01N2203/005G01N2203/0282G01N2203/0286G01N2203/0635G01N33/0096
Inventor H·费舍尔
Owner HELMUT FISCHER & INSTITUT FUR ELECTRONIK & MESSTECHN