Ultrasonic atomization is a physical process in which liquid is crushed and torn into small droplets by the energy of ultrasonic oscillation. In principle, ultrasonic atomization can be roughly divided into three types: single piezo type, mesh type and Langevin ultrasonic atomizer transducer type. The common ultrasonic atomization in the market refers to single piezo type and mesh type. And the single piezo type is more common one. It atomizes the liquid by the sound field produced by the vibration of piezoelectric ceramic directly immerged in the liquid. This type of atomization has the advantages of fine atomization particles and long lifetime. Typical applications include ultrasonic humidifier, aromatherapy machine, disinfection machine, etc. To learn more knowledge about ultrasonic atomization, please see the article ‘Ultrasonic Atomization’.

Ultrasonic atomizer transducer is the core component of single piezo type ultrasonic atomization. As one of the earliest enterprises to manufacture ultrasonic atomizer transducers in China, Siansonic launched patented ultrasonic atomizer transducer with nickel plating as early as the early 1990s. With excellent atomization performance and durability, Siansonic ultrasonic atomizer transducer has been selected by hundreds of companies in the world, and the cumulative sales has exceeded 10 million pieces. The resonant frequency of up to 3MHz can provide ultrafine atomized droplets of only 1 micron. The unique protective coating technology can realize the dual protection against both chemical corrosion and electric corrosion, so as to atomize various liquids. In addition, the ultrasonic atomizer transducer using high-intensity focused ultrasound （HIFU） technology can improve the energy conversion efficiency and is suitable for the development of atomization device driven by low voltage and low power.