生物组织微波热声成像高速数据采集系统的设计

Design of high-speed data acquisition system for microwave-induced thermoacoustic tomography used in biological tissue

在生物组织微波热声成像的研究中,对拥有极宽带宽的超声波进行数据采集是一个技术难点。本文设计了一个高速数据采集系统,可采集500MHz以下的超声波信号,经实际使用,效果令人满意。

It is a technological difficulty to acquire data from ultrasound with ultra-band in the study of microwave-induced thermoacoustic tomography. A high-speed data acquisition system for the ultrasonic signal with a frequency fewer than 500 MHz is designed in the paper. The result obtained demonstrates that the system holds good for microwave-induced thermoacoustic tomography.