Page 22 - Shock and Vibration Overview
P. 22

Equipment Setup






































                   Figure 11: The frequency response of an accelerometer can be greatly reduced when not using a
                   coupling fluid.



                      2)  Adhesive
                      There  are  several  different  adhesives  to  consider  when  mounting  your
                      accelerometer. Surprisingly though, the most important parameter for accelerometer
                      performance is not the adhesive type, rather it is the thickness of the adhesive that
                      plays the largest role. Figure 12 provides a few plots of the frequency response of
                      different  adhesives  (data  is  taken  from  that  same  Endevco  presentation)  which
                      illustrates what little difference there is.


























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