Broadband Transmitting Transducer Composed of Spherical Transducer and Copper Tube

Through simulation and actual measurement analysis, after installing a copper tube with an inner diameter of 71mm, an outer diameter of 75mm and a length of 35mm outside the spherical transducer with a diameter of 65mm and a wall thickness of 2mm, the vertical through-hole axial transmission voltage response -3dB bandwidth has been increased from 16kHz to The bandwidth of 24kHz and -6dB has been increased from 24kHz to 31kHz, and the range of the directivity of the transducer is small, which has achieved the effect of broadening the transmitting frequency band of the transducer.