超声发射 meaning in English

ultrasonic emission

Repairing the integrated circuit of the controlling emitting and receiving ultrasound wave in hitachi eub - 26 ultrasound b system
超超声发射与接收控制电路修理三法
In the following chapters , a 16 - channel experimental phased array ultrasonic testing system is thoroughly explained , including digital beam forming , low noise programmable amplification of received ultrasound signal , multi - channel hi - speed hi - precision data acquisition , hi - speed real - time processing of multi - channel ultrasound signal , and hi - speed data transfer based on pci bus . in addition , the frame of software system is built
本文详细阐述了作者所独立研制的16通道相控阵超声检测实验系统，包括数字化超声发射/接收波束形成、超声信号的低噪声程控放大、多通道高速高精度数据采集、多通道超声信号高速实时处理、基于pci总线的高速数据传输等全部电路模块的结构及工作原理，并说明了所编写的底层软件系统的框架。