Piezoelectric dispenser and method of calibrating stroke of the same
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United States of America Patent
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Jun 25, 2019
Grant Date -
May 19, 2016
app pub date -
Nov 18, 2015
filing date -
Nov 18, 2014
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Abstract
A piezoelectric dispenser having a uniform dispensing quality of a viscous liquid by calibrating an operation stroke of a valve rod discharging a viscous liquid (vertical operation displacement of the valve rod) by setting the operation stroke of the valve rod to an initial value during use, and a method of calibrating the operation stroke of the piezoelectric dispenser. Accordingly, a uniform dispensing accuracy of viscous liquid may be maintained, and degradation of the dispensing quality of a viscous liquid due to abrasion of components may be reduced.
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