Influence of piezoelectric atomizer pores on ultrasonic atomization effect

Piezoelectric atomizing device has extensive application in many fields and is beneficial to people´s livelihood. The areas of aerospace, medical and health, energy saving have raised a high demand for atomizer. The relationship between geometric parameters of atomizer pores and particle size of atomized droplet is crucial that we haven´t known yet. In this study, the author measured parameters of atomizer pores completely, then designed experiments to measure the particle size of atomized droplet. Statistical characteristic parameters and distribution types of pores were tested according to the data analysis and nonparametric test; meanwhile, the relation curve between particle size and statistical characteristic parameters were analyzed. The results shows as follows, pores diameter fits standard normal distribution, particle size of atomized droplet and upper pores average diameter is positively correlated under a certain spray height, degree of taper angle together with lower pores average diameter has no obvious relation with particle size of atomized droplet. When upper pores average diameter is 7.92 microns, particle size of atomized droplet is 7.52 microns.