Fluid mechanical property measurement method and measurement device
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United States of America Patent
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Dec 13, 2016
Grant Date -
Mar 12, 2015
app pub date -
Mar 5, 2013
filing date -
Apr 25, 2012
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Abstract
An object is to measure a mechanical property of a fluid at a temporal resolution of at least 100 [μs]. Therefore, a method comprising: causing a droplet 21 to fly by ejecting a fluid to be measured from a nozzle 11a as the droplet 21; generating an electric field in a space around a flight path 22 of the droplet 21 by applying a voltage to an electrode arranged in the vicinity of the flight path 22; deforming the droplet 21 in a way of contactless deformation with a dielectric force induced by the electric field; and measuring a mechanical property of the fluid based on temporal variation of deformation state of the droplet 21 after deforming the droplet 21.
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