A PZT Liquid Pump Made of the Piezoelectric Ceramic with Low Power and High Flow Rate
Abstract
Piezoelectric pumps possess many advantages such
as quiet operation, quick response, simple structure, and non electromagnetic radiation. This paper presents a PZT ( Lead zirconate titanate ) liquid pump with low power, high flow rate, small size, and light weight. The liquid pump is composed of the piezoelectric ceramic, elastomer valve, and PET ( Polyethylene terephthalate ) pump body. The power consumption, flow rate, body size and weight of the pump are 1 W, 800 ± 5% ml min-1, 50 × 50 × 10 mm., and 50 g, respectively. Additionly, the pump works at an exciting voltage of 50 Hz, 40
V. According to the applied voltage or frequency to a PZT pump, the flow rate of the fluid is able to be controled. Besides, the liquid pump is suitable for various fluids such as water, alcohol, soda, hydrochloric acid, etc.
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