2) specific normal acoustic impedance
法向声阻抗率
3) acoustic impedance
声阻抗
1.
Application of acoustic impedance in quality evaluation on well cementation by foamed cement.;
声阻抗技术在泡沫水泥固井质量评价中的应用
2.
Study on the measurement technique on acoustic impedance of pipe flexible components;
管路柔性元件声阻抗测试方法研究
3.
Study on the Key Technologies for Acoustic Impedance Reconstruction of Material with High Accuracy;
材料声阻抗高精度重建关键技术的研究
4) Acoustic impedance
声波阻抗
1.
However,the introduced signal processing approach using combined sound pressure p and vibration velocity components (V_x,V_y,V_z),which is based on constant acoustic impedance at different locations in sound waveguides,ignores the environmental effect on vector processing performance.
目前,矢量传感器在水声测量的探测技术中的应用已逐渐受到重视,但所采用的声压p和振速(Vx,Vy,Vz)联合处理技术还是建立在假定海洋波导中各位置处的声波阻抗数值都相同且为实数的基础上,而海洋环境效应的作用将不同程度地导致矢量处理器性能的降低。
2.
This artical draws together theoretical models and real data to analyze the fluid properties in satured EDA media whose wallrocks are sandstone and limestone equivalently based on rock physics and the new methods of identification of fluid anomalies using acoustic impedances.
基于岩石物理学和利用声波阻抗信息识别流体异常的新方法,结合理论模型和实际资料,对砂岩和碳酸盐岩中流体饱和EDA介质进行了等效的流体分析。
3.
In Dongsha sea area, taking the logging data and seismic stack velocity of ODP Leg at well 1148 as constraint,constrained sparse spike inversion was used to obtain acoustic impedance section.
声波阻抗可以提供丰富的岩性信息。
5) aural acoustic impedance
耳声阻抗
1.
As an objective diagnostic method, aural acoustic impedance measuring device holds a very important position in diagnosing ear diseases and hearing obstacles.
作为一种客观的诊断方法 ,耳声阻抗测量仪在临床耳疾和听力障碍诊断方面具有重要地位。
6) acoustic impedance
声阻抗率
1.
Study on impact of buried landmines on earth surface acoustic impedance;
地雷对地表声阻抗率的影响研究
2.
Besides,that the acoustic impedance or ratio of acoustic pressure at the ground surface measured by a sound level meter to the seismic velocity measured by a geophone array was plotted and used to analyze factors affecting the acoustic to seismic coupling.
采用音响作为能量源发射扫频的正弦波声信号穿透到地下土壤;用声级计和地震检波器串分别测得地表的声压级和震动速度,画出二者比值即地面声阻抗率的变化曲线,以此分析声/地震波耦合的效率及其影响因素。
3.
The influence of one-dimension compressible bias flow on the acoustic impedance of perfo-(rated) panels was discussed with consideration of the compressibility of flow.
从理论上研究了一维可压缩偏流对穿孔声阻抗率的影响,并分析了偏流对穿孔粘滞效应的影响;在实验中,利用真空泵流装置建立了存在偏流时的穿孔板声阻抗率测量系统,测量了一定频率范围内两块不同厚度穿孔板在不同偏流流速时声阻抗率的变化规律。
补充资料：星接阻抗和三角接阻抗的变换
星接阻抗和三角接阻抗的变换
transformation between starc-onnected and delta-connected impedances
x ing]一e乙日kongl介e sonJ一00}Iez日伙ongde匕一。一〕huon星接阻抗和三角接阻抗的变换(t ransfor-mation betweenstar一eonneeted and delta-eonneeted imPedanees)接成星形的三个阻抗和接成三角形的三个阻抗互相替代的等效变换。它们之间的关系可用一组变换公式表示。按这组公式，用星接阻抗替换三角接阻抗或者反过来，不会影响稳态下电路其他部分的正弦电压和电流，常用于对称三相电路的分析和计算。 图1为三个阻抗21、Z:、23接成星形(又称丫形)。图2为三个阻抗Z小22。、Zal接成三角形(又称△形)。它们之间的变换公式如下:人23土图1星接阻抗图2三角接阻抗(1)将星形连接变换成三角形连接212一Z:+22+2 122及3一22+za十警(1)、|冬|矛231一23+21+2321(2)将三角形连接变换成星形连接z、-二一典乒兴-) 艺‘2士乙“3十乙31…_2 oqZI，}Z。一下万~一二-二二-汁 乙‘2士乙23十乙3‘1_Z。IZoq}艺q一二二一~二，二二--，-二二-~J 乙12十乙23十艺32夕(2) 当三个星接阻抗相等，即21一Z:一23一z丫、三个三角接阻抗相等即212一223一231一Z△时，变换公式是 Z二一32丫，Z丫一Z△/3
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条