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Product Flyer RFDA system 23

发布时间:2013/07/02 16:10 下载:8 次 免费下载
Impulse Excitation Technique (IET) measurements at room temperature. The IET is based on the analysis of the vibration of a test sample or component after it was 'impulse excited' (= gently tapped). The resonance frequencies are characteristic for the test object, as they are related to its stiffness, mass and geometry. The relation is accurately known for isotropic objects of simple shape such as bars or discs, thus making IET a standard method to determine elastic moduli of isotropic materials (ref. ASTM E 1876, ENV 843-2).
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