Powder dispensing using piezoelectric dispensers

Here is an example of how very small amounts of powders can be dispensed using a piezoelectric dispenser:

piezoelectric tip moves above powder sample before aspiration
The piezoelectric tip moves above the powder sample before aspiration

powder gets loaded into tip using vacuum applied by attached syringe pump
Powder sample gets loaded into tip by aspiration effect driven by attached syringe pump

powder is dispensed out of piezoelectric nozzle using piezoelectric actuation
Small amounts of powder is dispensed out of piezoelectic nozzle using piezoelectric actuation (by drop on demand effect). The more actuation the more powder dispensed

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