Hi, I'm a Mechanical Engineering student and the voodoo that is electronics/ electrical engineering baffles me. However a portion of my final year project requires me to specify certain transducers and a data acquisition system. At the minute I am trying to specify an accelerometer. I'm either correctly or incorrectly looking at Piezoelectric accelerometers as my research has lead me to believe that they are the way to go when looking at dynamic accelerations (the project is a piece of apparatus to test the performance of head restraints in vehicles). The guide lines I have to stick to are that the channel has to be channel frequency class 600. Can anybody point me in the right direction as to what values I need to be interested in on the data sheets for accelerometers? Many thanks, to anyone who can spare me a bit of wisdom.