本文讨论了一种能够测量离体的和活体的人体组织声传播速度的装置。该装置可以得到试样相对于水中声速的4位十进制声速读数。目前建立的装置能够每秒钟进行一次声速测量,再附加一秒钟可打印出测量结果。本文叙述了该装置的原理。列出了对固体和软组织的实验结果。一、前言各种软组织的超声传播速度都已测量过。wells在一篇综述文章中曾编入了一些在文献中发表过的较有意义的声速数据。很 This article discusses a device that measures the speed of sound propagation in isolated and living human tissues. The device gives a 4-digit decimal sound speed reading of the sample relative to the speed of sound in water. The devices currently in place enable sonic velocity measurements to be taken once per second, plus one second to print out the measurement results. This article describes the principle of the device. The experimental results on solid and soft tissue are listed. I. INTRODUCTION The ultrasonic transmission speeds of various soft tissues have been measured. wells in a review article has compiled some of the more meaningful sound velocity data published in the literature. very