Quote:
Originally Posted by sparkymike
Now while movement is on the bench, is there a method of checking it for accuracy.? ie. How did they do it at the factory.
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In a Word Yes!
There are Two different Tests that should be done on an Avo Movement .
First, is the Movement sensitivity, and this is achieved by checking that FSD is reached
exactly at 37.5uA
This requires an accurate Current Source at this level obviously.
Second, is the Scale Linearity, and this will require a small circuit that would need to be
accurately calibrated when built.
This checks the 10,20,30,40,50,60,70,80 & 90% Scale points once the 100% (FSD) is
confirmed.
The Factory would have done exactly the same way we would do it now.
Ian