人体软组织超声检测仪的电路设计  

The Circuit Design for Ultrasound Measuring Instrument of Human Soft Tissue

作　　者：邱爽[1] 李醒飞[1] 

机构地区：[1]天津大学精密测试技术及仪器国家重点实验室,天津300072

出　　处：《现代科学仪器》2004年第3期16-18,共3页Modern Scientific Instruments

摘　　要：设计了一种新的超声发射和接收电路 ,在超声发射电路中 ,不需要提供高的直流电压源即可产生高达4 0 0伏的触发脉冲 ,降低了成本 ,提高了使用的安全性 ;接收电路使用了放大器MAX4 1 0 4和A/D转换芯片TLC5 5 4 0 ,电路简单实用 ;系统实验证明 ,该发射和接收电路精度高 。A novel circuit for emitting and receiving ultrasound is developed in this paper. In the emitting ultrasound circuit, no high input supply is needed to generate a triggering pulse voltage up to 400 Volts. This reduces the cost and enhances the safety. In receiving ultrasound circuit, MAX4104 and TLC5540 for A/D transformation are used to make the circuit simple and practical. Experimental results show that the novel circuits can work stably with a high accuracy.

关 键 词：超声波 超声发射 接收电路 

分 类 号：TH789[机械工程—仪器科学与技术]