The ultrasonic transducer vibrates longitudinally, its front cover plate links up with a half wavelength circular conical horn to increase the amplitude of the output end of the ultrasonic transducer.
该超声换能器采用纵向振动方式，其前盖板连接了一个半波长圆锥形变幅杆，以增大超声换能器输出端的振幅。
2
The frontend of the TEM horn antenna is a parallel plate transmission line.
TEM喇叭天线的前端是平行板传输线。
3
The invention discloses a chip absorbing and cooling connecting piece used for a boring end effector, which is installed on the frontplate of the supporting unit of the boring end effector.