Compact Drives for Piezoelectric Micropumps by PI
This video shows the operating principle of compact drives offered by Physik Instrumente (PI) for piezoelectric micropumps. Micro-diaphragm pumps need compact drives, which can offer a continuous flow and variable flow rates. The small volumes for each pumping cycle require high cycle rates of up to several 10 kHz to attain high flow rates.
Disk-shaped piezo actuators can be mounted directly on the diaphragm to deflect it. Larger forces or ranges can be realized if a piston or a diaphragm is directly combined with a piezoelectric actuator.
Run Time – 0:22min
Piezo Pump, Ultrasonic for Medical Engineering, by www.pi-medical.net