摘要
描述了非线性超声脉冲反射法的一种应用．详细讨论了双超声脉冲回波系统的设计、结构和调试，提供了调试的部分结果.通过实验得到叠加波形及对应的调制谱，证明这一检测系统有足够的分辨率和响应速度．并预示用它来实现组织温升无损检测是可能的．
An applicahon of the Ultrasound nonlinear reflection is introduced. The structure and design of a double ultrasound pulse-echo wave system are described, and its modulation is explained. The result from experimental modulation is given. Besides,the superimposed wave and its matching modulated spectrum are presented upon experiments. It is shown through experiments that this system has enough distinguishability and responding rate. Thus it may be used to realize the measurement of the temperature distribution and rising in one's tissue without pain.
出处
《北京工业大学学报》
CAS
CSCD
1999年第4期17-22,共6页
Journal of Beijing University of Technology
基金
国家自然科学基金!97100401
关键词
组织温度
超声测温
热疗
超声监测
无损检测
tissue temperature
noninvasive measurement
measurement via ultrasound
ultrasound propagation
nonlinear parameters
