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- The application of inter borehole acoustic wave method to probing deep cracks in mass concrete can effectively solve the above mentioned problems. 而应用声波跨孔法进行大体积混凝土结构的深裂缝检测可有效地解决上述问题。
- acoustic wave method 声波法
- Aimed at the characteristic of discreteness of the coal sample, pulse-penetrating method is used to measure the acoustic wave speed and the strength test is finished on MTS815. 采用超声脉冲穿透法测量煤样波速并进行岩石力学试验,回归分析得出了煤岩试件声速与其力学参数之间的关系式,为尽可能避免因煤样离散性而带来的盲目试验提供了一条技术途径。
- Using the Normal Model Theory and Wavenumber Integration Method, a low frequency acoustic wave propagation model in shallow sea of multi-layered media is constituted. 应用简正波理论并结合波数积分法,建立了浅海低频声传播特性的仿真数学模型。
- Prospecting metal mine goafs by Rayleigh wave method is introduced. 介绍用瑞雷波法检测金属矿山采空区。
- A pulse acoustic wave and its relationship with OAO flurescence are recorded. 记录了CO_2脉冲激光激发BCl_3分子时形成的脉冲声波,及其与OAO荧光的对应关系。
- J.F. Rosenbaum, “Bulk Acoustic Wave Theory and Devices,” Artech House, 1988. 钟曜光,“压电式微超音波感测器,”国立台湾大学机械工程研究所,民国90年。
- Influence of Acoustic Wave Attenuation on the Properties of Fiber AOTF[J]. 引用该论文 厉群;刘小明;李佟;金韬;周炳琨.
- Use method (1) named "the programmable trapping wave", which is merged with frequency spectrum convert in linear ,Direct Digit Synthesizer and Surface Acoustic Wave Filter, to open a communication band in jam-band willfully. 使用融合了线性频谱搬移技术、数字频率合成技术以及声表面波滤波技术的“可编程陷波法”，在干扰频段内任意开辟出通讯频段窗口；
- This paper gives a fast coarse synchronization method in which an acoustic wave convolver is employed as a programmable match filter in the TDMA spread-spectrum communication receiver. 本文给出了一种采用声表面波卷积器作为接收机的可编程匹配滤波器,实现时分多址直接序列扩谱信号的快速粗同步方法。
- Express the factors resulting in the attenuation of acoustic waves. 叙述引起音波衰减的因素。
- For very high frequency clocks, a surface acoustic wave (SAW) oscillator is preferable. 对于非常高的频率时钟，用声表面波振荡器更好。
- The transduction of acoustic waves into voltages by a microphone. 声波被麦克风转换为电压。
- Minimum Detective Height and Height Measurement Accuracy Use Diffraction Wave Method to Detect a Crack Height. 衍射波法测定裂纹高度时的最小可测高度和高度测试精度。
- A M - band CMFB with a side lobe of about 45 dB was designed using the optimum equal wave method. 通过分析M带滤波器组和M带复用转换器的完全重构条件;用最优等波纹法设计了一个旁瓣约为45 dB的M带余弦调制滤波器组.
- All these indicate that the acoustic wave velocity in granite samples is affected by several extrinsic factors and some rules may be found. 实验结果表明，声波在岩石内传播速度受很多外在因素影响，并具有一定的传播规律。
- The sound absorption coefficient of three kinds OSB wallboard were tested by the stationary wave method. 采用驻波管法测定了3种定向结构板(OSB)复合墙体的吸声系数；
- By comparing the acoustic wave impedance with the VSP (vertical seismic profile), the reflectors of the CCSD pilot hole have been analyzed. 分析结果表明(1)岩性间波阻抗差异产生反射波,如榴辉岩与副片麻岩之间波阻抗差异;
- With plane wave method,it is proved that the 1D-USPC shares the same bandgap character. 利用平面波法证明了一维超声光子晶体具有一般一维周期层叠结构光子晶体的禁带特征。
- The microphone converts acoustic waves to electrical singals for transmission. 麦克风将声波转化成电信号进行传播。
