acoustic velocity 中文意思是什麼
acoustic velocity
解釋
聲速-
The following results were found, i. e., the water ratio affects obviously the acoustic wave velocity of rock sample ; the wave velocity is higher in saturated rock samples than in unsaturated ones ; and it decreases gradually with the strain of samples during uniaxial compression ; and also with the lengthening holding time at 160 ; when heating the samples the acoustic wave velocity increases slightly in initial stage and comes to the peak value at 60, then decreases gradually with increasing temperature ; meantime, there is a certain temperature effect on rock samples size
實驗發現含水率對波速影響比較大，飽和巖樣的聲波傳播速度高於不飽和巖樣的聲波傳播速度；人工預制裂紋對聲波傳播速度影響不大；單軸壓縮條件下，聲波傳播速度隨應變增加逐漸降低；在同一溫度（ 160 ）下，波速隨保溫時間的增加而逐漸降低；在對巖樣逐漸加熱情況下，初始加熱階段波速略有升高，當溫度達到60時，巖樣波速達到峰值，之後隨著溫度繼續升高其波速逐漸下降；波速隨溫度變化具有一定的尺寸效應。 -
Investigation and comparison of two different methods of acoustic velocity thermometry
兩類聲速測溫方法的研究與比較 -
By modeling of " y " - shaped junction of the compound river channel with an intersection angle 90, the flow velocity and water level at the junction were obtained by use of the acoustic doppler velocimeter ( adv ) and point gauges
摘要通過製作交匯角為90的復式斷面河道" y "型交匯河口模型，利用三維聲學多普勒流速儀（ adv ）和測針獲取流速及水位數據，對支流河口處的水流流態包括水面形態、水流流速和水流分區進行分析。 -
By using the three - dimension acoustic doppler velocimeter to measure velocities of flow in an ecological river before and after arrangement of cropping loops, the velocity distribution, turbulence intensity and reynolds stress before and after arrangement of cropping loops are compared
摘要採用三維超聲波多普勒測速儀對河道生態修復中種植圈布設前後的工況量測，比較了布設種植圈前後的流速分佈、紊動強度和雷諾應力的變化。 -
Experimental study on evaluation of formation drillability anisotropy by acoustic wave velocity
用聲波法評價地層可鉆性各向異性的實驗研究 -
3. a three - dimensional - acoustic doppler velocimeter has been used to measure the velocity and turbulence in a compound channel with vegetated and unvegetated flood - plains. particulary in the interface region between main channel and floodplain. the distribution in three coordinate directions of velocity and turbulence intensities and the renolds stresses are presented. the momentum transfer at the main channel flood - plain interface can be described as an apparent shear stress which can be quantified as a function of the local turbulence at the interface
採用adv對灘地種樹前後灘槽交界區域的流速場進行了量測。分析了灘槽交界區域的垂線流速、紊動強度和雷諾應力的變化。將灘槽交界的動量傳遞描述為一表觀應力，這個表觀應力可以看作是交界面處的脈動函數並將其定量化。 -
Based on the previous work, the equations of motion and elastodynamics are changed. a high - order staggered velocity - stress finite - difference formula of the acoustic field in borehole are set up in cylindrical coordinate, and the corresponding code is accomplished
本文在彈性波動力學的基礎上，將運動方程和本構方程作適當變形，採用交錯網格技術建立了井孔波動方程在柱坐標系下的速度?應力高階有限籌分公式，並編制了相關計算程序。 -
The acoustic pressure information and particle velocity information are used to study the direction of the arrival estimation by analyzing strong linear spectrum of the single target basing on cross spectrum method
摘要利用矢量水聽器收集到的聲壓和振速信息，研究基於互譜法分析單目標的強線譜來進行目標方位估計。 -
A vector hydrophone is composed of two or three spatially co - located but orthogonally oriented velocity hydrophones plus another optional co - located pressure hydrophone. this paper introduces an underwater acoustic eigenstructure esprit - based algorithm that yields closed - form direction - of - arrival ( doa ) estimates using a single vector hydrophone
矢量水聽器是由質點振速傳感器和聲壓傳感器復合而成的，相對于傳統的聲壓水聽器，可以獲取水下聲矢量信號，為水下信號的檢測和估計提供了更為豐富的聲場信息。 -
Based on the acoustic radiation mode analysis, the transfer matrix relating the pressure at every field point to normal component of surface velocity is formed
摘要基於聲輻射模態分析，建立了外部場壓和結構表面振動速度之間關系的傳遞矩陣。 -
Abstract : aimed at the circumstances including deeper formation, wider wells " distance, few data in new exploratory zone and lower drilling success rate, etc., the paper discussed the drilling geological environmental factors such as seismic velocity and acoustic wave logging velocity, and put forward a set of technical methods including basical data treatment in deep exploratory wells, drilling optimal design and operations
文摘:針對塔里木盆地沙雅隆起井眼深、井距大的難點和新靶區探井參考資料少、鉆井設計盲目性大、鉆井成井率低等問題，分析探討了地震層速度和聲波測井速度等鉆井地質環境因素變化規律，提出了一套深探井鉆井基礎數據處理、鉆井優化設計和優化施工的技術方法。 -
A three - dimensional - acoustic doppler velocimeter is used to measure the velocity components of the flow field in all three coordinate directions for different discharge and measurement site. the influence of measurement site and the depth / vegetation height ratio on the measured velocity profile and turbulence intensity and the renolds stress is analyzed. the characteristics of the measured velocity distributions and the results of the previous investigators are used to select an analytical expression for the shape of the velocity profile
利用三維超聲波多普勒流速儀（ adv ）量測不同位置、不同流量下的瞬時流場。分析了測點位置和水深與植被高度比對時均流速分佈的影響。本文還給出了種樹段紊動強度及雷諾應力的垂線分佈。 -
Using the velocity of bulk acoustic wave and surface acoustic wave in the aluminium sheet measured by this system, elastic constants of aluminium are deduced
通過實驗檢測鋁板的超聲回波，求出了鋁的超聲波速度，並根據固體力學理論，得出了與理論數值相符合的材料的彈性模量。 -
Improvement of acoustic velocity measurement device
聲速測量實驗裝置擴展應用 -
Test method for open channel flow measurement by acoustic velocity meter systems
用傳聲速度計系統測試明渠流量的試驗方法 -
In order to calibrate properly the thin reservoir of hd4 oilfield with acoustic velocity, based on the theory of well - to - seismic calibration, the influence of the dominant frequency, kind and phase of the wavelet, and acoustic velocity on the synthetic traces was analyzed, moreover, the differences between interval velocity from stacking velocity and acoustic velocity were discussed
為了利用聲波速度對薄儲層進行有效的井震標定，從井震標定的原理出發，以哈得四油田的井震標定為例，分析了標定過程中子波的主頻、類型和相位及聲波速度對合成地震道的影響，同時分析了聲波速度與疊加速度轉換的層速度之間的差別。 -
Testing study on rock drillability evaluation by acoustic velocity of cutting
巖屑聲波法評價巖石可鉆性的試驗研究 -
Comparison of two acoustic velocity measurements
兩種聲速測定實驗方法的比較 -
A new method using reference layer and adjusting acoustic velocity for calibrating thin reservoir was proposed
提出以參考層為標準，並對聲波速度進行微調的薄儲層的標定方法。 -
The results of well - to - seismic calibration are effective by selecting permian igneous rock and carboniferous double - peak limestone as the reference layers, adjusting appropriately acoustic velocity and choosing the most suitable wavelet
利用上述方法，以哈得四油田二疊系火成巖及石炭系雙峰灰巖為參考層，選取與研究區地震數據吻合性最好的子波，合理地調整聲波速度，對哈得四油田的主要儲層東河砂巖進行井震標定，獲得了較為理想的效果。
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