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- medical ultrasonic signal 医学超声信号
- This paper introduces two types of little signal amplifiers for high frequency and wide gain in medical ultrasonic dynamometers and then makes a comparison between them. 介绍供医用超声功率计用的两种高频、宽增益的小信号放大器,并比较了它们彼此的优缺点。
- Segmentation of Medical Ultrasonic Image Using Hybrid Neural Network. 超声医学图象分割的混合神经网络方法。
- Much as bats do, robots send out ultrasonic signals. 机器人就象蝙蝠那样地发出超声波讯号。
- An ultrasonic signal that’s undetectable to the human ear will scare off the varmint from up to 65 feet away. 一个人耳不能察觉的超声波信号会吓跑65多英尺以外的淘气动物。
- A new denoising method for ultrasonic signal based on blind source separation(BSS) is proposed. 提出一种新的基于盲源分离的超声信号去噪方法。
- This paper introduces the design and development of a medical ultrasonic irrigative and therapeutic apparatus. 目的:研制一种节水、高效的超声波冲洗治疗仪器。
- This paper introduces a band-pass filter (BPF) circuit which is used in Time Gain Compensation (TGC) of medical ultrasonic endoscope imaging system. 摘要根据内窥超声成像系统的要求,设计一种用于超声增益补偿中的改进结构带通滤波电路。
- Abstract:In ibis article,we renew the history of development in medical ultrasonic and introduce new progress of medical ultrasonic image technology. 摘要:回顾医学超声的发展历史;介绍医学超声影像技术的新进展.
- The system with signal peak voltage holding, A/D converter, microprocessor, D/Aconverter and voltage adjustment was introduced to realize the ultrasonic signal AGC. (3)采用自动增益控制,即信号的峰值电压经A/D变为数字信号送给单片机,再通过D/A和电压调节电路调节增益控制电压,实现测量信号的自动增益控制。
- This paper introduces a band-pass filter(BPF) circuit which is used in Time Gain Compensation(TGC) of medical ultrasonic endoscope imaging system. 根据内窥超声成像系统的要求,设计一种用于超声增益补偿中的改进结构带通滤波电路。
- The ultrasonic defect echo of a austenite stainless steel with coarse grainswas acqiuired and processed using a developed computerized ultrasonic signal analysissystem. 采用计算机化超声信号分析系统,对奥氏体不锈钢粗晶材料缺陷的超声回波信号进行采集和加工。
- Digital beamformer design: The advance of medical ultrasonic imaging system technologies is closely linked to the advance in electronic technologies. D.;数位成像技术:医学超音波影像系统之技术演进和电子技术之快速进步有著密不可分的关系。
- Abstract: This paper introduces a band-pass filter (BPF) circuit which is used in Time Gain Compensation (TGC) of medical ultrasonic endoscope imaging system. 摘 要: 根据内窥超声成像系统的要求,设计一种用于超声增益补偿中的改进结构带通滤波电路。
- It made use of the signal automatic gain control (AGC) and complex logical control to realize the precise measurement of the ultrasonic signal, and made use of the logical analytical method to realize double frequency and 160 MHz frequency of the counter. 利用超声波信号的自动增益控制 (AGC)和复杂的逻辑控制实现信号的精确测量 ; 利用逻辑分析实现倍频 ,使计数器的计数频率达到 16 0 MHz;
- A software of analyzing and processing ultrasonic detection signal with wavelet is developed with MATLAB6.1. MATLAB6.1 is a very useful and available tool for wavelet analysis and processing of ultrasonic signal. 利用MATLAB6.;1强大的各种工具箱、快速的编程风格和友好的图形界面等特点,编写了超声检测信号小波分析与处理软件,对超声检测信号进行了处理。 它在超声检测信号小波分析与处理方面是一个非常有用的工具。
- The wireless location electronic whiteboard based on ultrasonic signal has many advantages, but this type electronic whiteboard is easily interfered by aculeated sound signal because the frequency of the ultrasonic signal the frequency is lower. 我们实验室在基于无线定位理论的基础上,已成功研制成基于超声波信号定位的多功能交互式无线定位电子白板。 基于超声信号定位的无线定位的电子白板虽然有诸多优点,但是由于超声信号的频率较低,在实际应用场合极易受到其它尖锐声音信号的干扰。
- The ultrasonic signals are excited by laser and received by polyvinylindene fluoride (PVDF) transducer. 超声信号由激光激发,并且由聚偏二氟乙烯(PVDF)传感器接收。
- Simulation results indicate that the method can detect FHR from the Doppler ultrasonic signals and solve the problems of frequency doubling and halving. 仿真结果表明,该方法能准确地从超声多谱勒信号中提取胎心率,成功地解决了现有的胎心监护仪存在的加倍、减半的问题。
- Medical ultrasonic therapy and its applications 医学超声治疗技术研究及其应用