结合岩心砂泥岩频散特性实验结果分析了岩心在饱水及干燥状态下声频散的特点。
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对纯砂岩,当孔隙度大于28%时存在明显纵波声频散。
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An experimental study of acoustic dispersion of rock and extrapolation of the velocity
岩石声频散的实验研究及声波速度的外推
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传统用于无线通信的带通滤波器以介质陶瓷滤波器和声表面波滤波器为主,他们因为体积大或工作频率低等因素已经不能满足需要。
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Surface Acoustic Wave Filter ( SAWF) is a sort of analogue device for signal processing.
声表面波器件是一种新型的模拟信号处理器件。
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The utility model adopts surface acoustic wave filter, and the circuit is simple to realize.
采用声表面波滤波器,电路实现简单,调整方便,一致性好。
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Study on the Calibration Technology of the Acoustic Measurement of Suspended Sediment Concentration
声学方法监测悬浮物浓度的定标技术研究
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Simulation of underwater acoustic measurement system cable interference voltage
水声测量系统信号线缆干扰电压的仿真计算
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Acoustic measurement and spectral characteristic analysis of two kinds of pulse signal
两种脉搏信号的声学检测与谱特征分析
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Research on application of spectrum analysis in acoustic measurement of seabed sediments
海底沉积物声学测量中频谱分析方法应用研究
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Acoustic measurement and analysis in Nanjing Subway Engineering Investigation
南京地铁工程勘察中声波测试与分析
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