PCB Test & Measurement Seite 44

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PCB PIEZOTRONICS INC 716 684 0001 Fax 716 685 3886 For Additional Specification Information Visit www pcb com 42 Impact Hammers Highlights Modally Tuned to provide more consistent results Variety of hammers to suit any size test object Assortment of tips offer frequency tailored impulse Each PCB Modally Tuned ICP instrumented impact hammer features a rugged force sensor that is integrated into the hammer s striking surface Modal Tuning is a feature that ensures the structural characteristics of the hammer do not affect measurement results This is accomplished by eliminating hammer resonances in the frequency range of interest from corrupting the test data resulting in more accurate and consistent measurements The force sensor serves to provide a measurement of the amplitude and frequency content of the energy stimulus that is imparted to a test object Accelerometers are used in conjunction with the hammer to provide a measurement of the object s structural response due to the hammer blow A variety of tips supplied with each hammer permit the energy content of the force impulse to be tailored to suit the requirements of the item under test Using multi channel data acquisition and analysis software the test engineer is able to ascertain a variety of mechanical properties leading to an understanding of an object s structural behavioral characteristics Items analyzed can include resonance detection mode shapes transfer characteristics and structural health such as crack and fatigue detection 3 T Mcatalog 2011 Seite 33 48 A4 F G500 21 04 11 09 27 Seite 42


Vorschau PCB Test & Measurement Seite 44