Page 17 - Vibrations 4
P. 17

Low noise MEMS accelerometers are available today with


        noise  density  levels  anywhere  from  10  µg/√Hz  to  100

        µg/√Hz, but are restricted to a few kHz of bandwidth.







        Are they used instead of conventional accelerometers?


        Have a read of PhD thesis,



        https://www.research.manchester.ac.uk/portal/files/545

        09608/FULL_TEXT.PDF







        Actuators – Shakers



        Referred to on page 2


        https://youtube/cwce21fb6DY



                                                                      You  will  have  a  signal


                                                                      source, which is fed into

                                                                      an amplifier.



                                                                      The  output  of  the

                                                                      amplifier  is  then  fed


                                                                      into the shaker.






        Signal source can be the 35670A spectrum analyser which


        has various signal outputs (see page 2).





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