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FinalThesis
- 用超声换能器实现音频声束可以有效解决声音传播过程的发散。该文档全面介绍了如何用普通的超声换能器实现audiobeam。-ultrasonic transducer achieve Audio sound beam can effectively solve the voice communication process divergence. The document gave a comprehensive overview of how to use ordinary ultrasound
Waveletanalysisusingsofthresholdingfilteringinlect
- 在采集信号时,如果传感器没有前置放大, 则传感器输出的压电信号的信噪比会比较低。本文利用小波域软阈值滤波方法对未采用前置放大而采样得到的 信号进行小波分析,大幅度地提高了信号的信噪比,提取的目标信号位置与理论位置吻合的很好。这表明可以通 过小波分析方法很好地改善热超声信号的信噪比,从而降低对微波致热超声成像采集系统中前置放大器的要求-When human tissue is irradiated by microwave pulses, there is thermo2acoust
RLSchaoshengbo
- 针对超声换能器的传输特性随着温度和压力发生变化这一普遍存在的问题, 利用自适 应滤波技术对超声换能器的传输特性进行校正, 以减小温度和压力的变化对检测信号的影响。实测数据的处理结果表明: 基于RL S 算法的自适应滤波技术能准确地求出在不同温度压力条件下换能器传输特性变化的逆函数, 从而能很好地校正由于超声换能器传输特性随温度压力变化所引入的信号误差。-Ultrasonic transducer for the transmission properties change with tem
design3
- YDEUI型交流电压电流变送器方案设计YDEUI AC voltage and current transducer design-YDEUI AC voltage and current transducer design
62307628-Analsysis-and-Design-Principles-of-MEMS-
- The MEMS devices such as presuure transducer, micropipes, microactuators, are explained in detail. The structural design and principles are expalined neatly and easily understandable
REPORTdistance
- The report details the implementation of distance measurement system using the ultrasonic waves. As the human ear’s audible perception range is 20 Hz to 20 kHz, it is insensitive to ultrasonic waves, and hence the ultrasound waves can be used for
Ultrasonic-Proximity-Detector-Dec06_01
- ULTRASONIC PROXIMITY DETECTOR...We the humans can hear sound of up to 20kHz frequency only. This proximity detector works at a frequency of 40 kHz. It uses two specially made ultrasonic transducers: One transducer emits 40kHz sound, while
mosfet-25-transducer
- mosfet 25 W Hi-Fi transducer project.
DIGITAL-IMAGE-PROCESSING-IN-ULTRASOUND-IJRITCC_13
- Image processing plays a vital role in the development of medical industry especially ultrasound medical images. Image acquisition is carried out using ultrasound equipments like transducer, scanner, and CPU and display device. There are mainly f
transducer-receiving-
- 一种新颖折合振子接收整流天线的设计-A novel transducer receiving rectenna equivalent design