A characteristic study on the transmisson-reception and fabrication of the ultrasonic transducer using composite with 1-3 connectivity

1-3형 복합재료를 이용한 초음파 Transducer의 제작과 송수신 특성연구

A composite with 1-3 connectivity was fabricated by filling spurrs epoxy in arried PZT bars. The composite bad lower density(2220 Kg/$m^3$), lower dielectric constant, lower piezoelectric coefficient d33(260*$10^{12}$ C/N), and higher voltage coefficient(110.1*$10^{-3}$ Vm/N) than that of solid PZT. The probe was fabricated by using composite transducer that was made above. The underwater testing of the composite transducer was performed with water backing.