| 摘要 |
An ultrasound inhaler contains a body with inlet and outlet openings, the piezoelectric transducer, the generator of the electric oscillations, and the fan. The inhaler contains the step conical ultrasonic concentrator connected with piezoelectric transducer. The diameter of the lesser opening of concentrator, d, is selected according to the formula 0.4<d/D<0.6, wherein D – diameter of the larger opening. |
