Underwater propulsion system using PZT transducer, as a new type of underwater propulsion system, has been studied. At that time, (Bi, Na, Ba)(Ti, Mn)O₃, namely BNBTM lead-free piezoelectric ceramics were noticed. Through comparative experiments, lead-free BNBTM piezoelectric ceramics are not only friendly to the environment and the human body, but it is also that the material properties of BNBTM piezoelectric ceramics are more stable than that of PZT piezoelectric ceramics. Therefore, this research mainly discusses the feasibility of using a BNBTM transducer in the underwater propulsion system by the measurement of the system’s propulsion, BNBTM transducer’s admittance characteristic, and the speed of swimmer with the underwater propulsion system.

使用PZT换能器的水下推进系统作为一种新型的水下推进系统进行了研究。当时注意到(Bi, Na, Ba)(Ti, Mn)O ₃，即BNBTM无铅压电陶瓷。通过对比实验，无铅BNBTM压电陶瓷不仅对环境和人体友好，而且BNBTM压电陶瓷的材料性能比PZT压电陶瓷更稳定。因此，本研究主要通过测量系统的推进力、BNBTM换能器的导纳特性以及使用水下推进系统的游泳者的速度来讨论在水下推进系统中使用BNBTM换能器的可行性。