Method for testing the atomization characteristics of a micro flow nozzle

In the light of the difficulty existing in accurately measuring the atomization characteristics of a micro flow nozzle, established were an atomization system and a method for studying the measurement. The volumetric method was used to measure the flow characteristics of the nozzle and the active contour model (ACM) was utilized to capture the atomization boundary and figure out the atomization cone angle. Furthermore, by using a laser particle size analyzer, an experimental study of the sizes and distribution characteristics of the atomized droplets was completed. The volumetric method can overcome the measurement error caused by a small flow rate and lead to a low measurement cost. The ACM method can theoretically guarantee the uniqueness of the atomization boundary captured and optimum credibility, eliminating the objective factors involved in the threshold value method, especially the direct measurement method, thus enhancing the accuracy of the test results.