Page 8 - Vibrations 3
P. 8

With multiple accelerometers attached to a rotating


        machine, you can determine which frequencies are

        common to all points.



        This will answer the question – whether a single vibration


        source is propagating through the structure.


        Although there may be a common frequency, unless they


        come from the same source they will not be correlated

        and their phases will be random.




























                                                         ()



























                                                        ()


                                                            7
   3   4   5   6   7   8   9   10   11   12   13