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Effect of Gravity on acceleration measurement

  1. Aug 23, 2008 #1

    IMK

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    Hello,

    In the attached pdf there is a crankshaft arrangement that is working at a constant speed and on the end of the crankshaft is a single axis accelerometer that is aligned so it measures the acceleration of the crankshaft. (Fig. A) In the experiment the peak acceleration measured is plus/minus 0.1 g (0.98 mss)

    My question is what happens to the acceleration measurement when the whole machine is rotated as in (Fig B). Is the measured acceleration plus/minus the sine of gravity? Thus if the crankshaft arrangement was inclined at 15 degrees the influence of g would be 0.173 and the measured acceleration would be plus 0.273 and minus 0.073. Or have I mist something?

    Many thanks IMK
     

    Attached Files:

  2. jcsd
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