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Solution
mécatronique
Ebatest
Page 6
User guide
3 Operation
The Ebatest allows the measurement of the shake on mounted watch-movements. Its accuracy is about one
micron. Its operating principle is as follows: when moving down the handle, the counter-tip (lower tip) moves up
and pushes the movement wheel from below so as to catch it in the slot. While continuing to descend the handle
the upper tip comes pressing on the wheel from above. By its own weight, the top pin will lower the wheel. A
feeler is measuring this displacement, which represents the clearance. The measure will be displayed on the
Micro Vision.
Tip
Counter-tip
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