| 摘要 |
The device consists of an arc-shaped measuring element which is constructed as a spring element on which strain gauges are arranged, and of connecting elements for connecting the measuring element with the materials or components to be tested. The device exhibits a U-shaped spring element (1) with straight element sections (leg 2a, 2b, cross connection 3 between the legs) and reinforcements (4a, 4b) provided with flat surfaces between the element sections (2a, 2b, 3). On the straight element sections (for example, of the cross connection 3) of the spring element (1), strain gauges (5a, b) can be simply and reliably attached. On the reinforcements (4a, b) feed lines and protective devices can be arranged. The straight leg sections (2a, 2b) of the spring element (1) are well suited to attaching interchangeable connecting elements (I, II) such as blade and cup elements (11a, b). As a result, the device can be easily attached to the component to be tested and can be used for different applications, for example for measuring strains, deformations, crack expansions, stresses and so forth, at high frequencies and rates of shape change. <IMAGE>
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