ultrasonic velocity 中文意思是什麼

ultrasonic velocity 解釋
超聲速
  • ultrasonic : adj. 超音的，超音速的。 ultrasonic wave 超聲波。n. 超聲波。
  • velocity : n. 1. 迅速；快速。2. 速度，速率。3. 周轉率。
  1. Changes of the longitudinal and transversal wave velocities in different directions and the rock velocity anisotropy as a function of confining pressure have been studied under laboratory ultrasonic frequency for shale and sandstone with marked foliation, which had been saturated by the fluids with different viscosity kerosene and vacuum pump oil and salinity distilled water, 50000

    利用不同黏度煤油和真空泵油不同礦化度蒸餾水50mg l和150mg l的nacl溶液的流體對頁巖和具有明顯層理的砂巖進行飽和，在實驗室超聲頻率下研究樣品不同方向縱橫波速度以及各向異性參數
  2. The study on ultrasonic velocity in supercritical fluid co

    2流體中超聲聲速的研究
  3. Rock - determination of the ultrasonic waves velocity in laboratory - transmission method

    巖石.實驗室測定超聲波速度
  4. The developing ratio of its long - term fc is up to 25 %. and the ultrasonic velocity was inspected out by way of ultrasonic - concrete technique : the maximum value was 5376m / s ; the minimum was 4386m / s. this explained that hpc in the experiments was very close - grained

    採用超聲波混凝土檢測技術測得試件28d的最大波速值為5376m s ；試件最小波速也達到了4386m s ，這表明本試驗所獲得的混凝土試件的密實程度是相當高的。
  5. Laser, ultrasonic beam and microwave are used in non contacting level measuring systems. laser systems suffer from dirt, ultrasonic sensors are strongly affected by changes of the velocity of sound and usually a pipe is needed to couple the ultrasonic waves into the liquid tank, which is difficult when there is a high pressure or when explosion protection is necessary

    壓力式液位測量系統原理簡單、成本低，但測量精度和應用場合有一定的局限性，超聲液位儀精度較高，但設備復雜，一般需要用導管將超聲波傳到被測的液體中，因而安裝維護較麻煩，激光測距系統對環境要求嚴格。
  6. Based on the analysis of thin sections by microscope, measurement of porosity and density, and geological setting, we tested the rock physical parameters of sandstone, siltstone, carbonate and other transitional sedimentary rocks by the mts system under formation conditions ( temperatures, pressures and pore fluid properties ). the rocks we tested are from tertiary ( including zhujiang formation, zhuhai formation, enping formation, hanjiang formation ) of zhujiangkou basin in southern china sea. according to the analysis results, we studied the main ultrasonic wave velocity characters of rocks, which are compressive and shear wave velocity and poisson ' s ratio under different formation conditions

    在對珠江口盆地第三系儲集巖進行顯微鏡薄片分析、孔隙度和密度分析，以及地質背景分析的基礎上，利用巖石物理參數測試系統（ mts ）模擬地層條件（溫度、壓力和孔隙流體狀況）測試了珠江口盆地第三系（包括珠江組、珠海組、恩平組、韓江組，以下有關討論同）砂巖、粉砂巖、碳酸鹽巖及其過渡性巖石物理性質，重點研究了不同地層條件下巖石的聲學特徵（巖石的縱橫波速度和泊松比） 。
  7. Standard practice for measuring ultrasonic velocity in materials

    測量材料中超聲波傳播速度的標準實施規程
  8. On terrible conditions, it is superior to other sensors. the velocity of ultrasonic transmission multiplied by the transmission time equals distance

    位移是超聲波傳播的速度與超聲波從發到收傳播的時間相乘的結果。
  9. The principle of multi - method and multi - parameter is suggested, which should be followed during characterizing microstructures of alloy steels by ultrasonic not method. ultrasonic velocity ( c, ) of transformation products through different heat processes of three steels was measured by high - accuracy ultrasonic installation. the velocity of quenched microstructure of 38crmoal is the lowest, which gradually increases with increasing tempering temperature between 200 ? and 650 ? after quenching process

    利用ti - 40n高精度超聲波測厚儀，研究了超聲波在不同鋼種、不同熱處理轉變產物中的超聲波速度c _ 1 : 38crmoal鋼淬火組織c _ 1最小，淬火后在200 650范圍內進行回火處理時，隨回火溫度的升高， c _ 1逐漸升高， hrc與c _ 1之間具有較好的相關性；正火組織的c _ 1介於淬火后中溫回火及高溫回火產物組織的c _ 1之間。
  10. Using a simulation of physical model and according to the analogical principle, a simplified double - layer model of the surface and roadbed of concrete highway is established, practical methods of distinguishing the reflected ultrasonic wave, measuring the velocity of the reflected ultrasonic wave and the time parameter, which the ultrasonic wave takes from leaving source to the received by receiver, are put forward

    摘要利用模擬物理模型，並根據相似性原則建立起公路路面和路基的雙層簡化模型，提出了一種準確識別反射波，測量反射波速率及走時參量的實用方法。
  11. Predictive theory for pressure coefficient of ultrasonic velocity in mixtures made up of multi - kinds organic liquid

    多元有機有機混合液聲速壓力系數的理論預測
  12. The conclusions are as follows : the ultrasonic intensity is proportion to the laser intensity ; the ultrasonic induced by a laser line source has much more advantages than by a laser point source, such as stronger energy, higher snr, more directivity and shape ; the intensity of cfpi ' s output signal is linear with ultrasonic vibration velocity, and is effected by incidence angle and scattered angle ; snr will increase by reducing cfpi ' s bandwidth, reducing incidence angle, increasing cavity ' s length and reflectivity

    在分析點光源激勵聲表面波機理的基礎上，求出了線光源激勵的超聲振動的位移表達式，發現線光源激勵的近場區表面波具有波形好，信噪比高，指向性好，幅度強等特點。通過理論推導，得出共焦fabry - perot干涉儀的輸出光強除了與樣品表面的振動速度成正比，並與入射角和散射角有關；適當減小cfpi的帶寬，增加腔長，增大鏡面反射率，或者減小檢測入射角都可以提高系統的信噪比。
  13. The ring - type linear ultrasonic motor obtains its maximal velocity 15mm / s with the power of 300v and load of 0. 24kg

    當驅動電壓為300v ，配重塊為0 . 24kg時，長環型直線馬達的速度達到最大值15mm / s 。
  14. According to structural characteristics of multi - phased alloy steels and the properties of ultrasonic propagation, microstructures characterization with different heat treatment processes ( normalizing, quenching / annealing, quenching plus low tempering, quenching plus high tempering ) for three steels ( 40cr, 38crmoal, gcrlssimn ) was studied experimentally by using ultrasonic methods. ultrasonic velocity, relative attenuation coefficient, and power spectral analyses were researched on the same samples respectively, on the basis of theory and experiment, the sensitivity and other characterizations of the three methods used to distinguish different microstructures were compared

    根據具有多種相結構合金鋼不同熱處理轉變產物的組織特點，以及超聲波在其中的傳播規律，利用超聲波速度、相對衰減系數以及功率譜分析三種方法，對三種鋼（ 40cr 、 38crmoal及gcr15simn ）不同熱處理（正火、淬火退火、淬火+低溫回火及淬火+高溫回火）轉變產物的顯微組織進行了超聲表徵研究。
  15. Method for measurement on ultrasonic velocity of solid by pulse technique using reference test piece

    用基準試樣通過脈沖技術測量固體超音速的方法
  16. Based on the transfer - matrix method, the general expressions of equivalent four - terminal network parameters of varying section torsional horn are derived, the relations between frequency equation and both the rotational velocity amplification and that of the surface tangential velocity of stepped type torsional ultrasonic horn with transitional section of cosine - like type are obtained

    摘要基於傳遞矩陣演算法，推導出了變截面桿扭轉振動時等效四端網路參量的一般表達式，研究了帶類餘弦過渡段階梯形變幅桿扭轉振動頻率方程與角速度放大倍數及外表面切向速度放大倍數等的關系。
  17. Standard test method for measuring ultrasonic velocity in advanced ceramics with broadband pulse - echo cross - correlation method

    用寬帶脈沖反射交互作用法測量高級陶瓷中超聲速率的標準試驗方法
  18. Abstract : the relationships between the residual strength of the tunnellining damage due to high temperature and ultrasonic velocity were studied on the basis of the experiments on the concrete and members of the tunnel the tunnel damaged by fire were discussed

    文摘:在對隧道襯砌混凝土和構件進行實際燒損試驗基礎上，探討了襯砌在高溫作用后殘余強度與超聲波速之間的關系，以及超聲檢測技術用於測試隧道火災損傷的適用性和和可靠性。
  19. The results of study by the university of valencia and the university of illes balears in spain were not immediately clear, however, the judges deemed their study " ultrasonic velocity in cheddar cheese as affected by temperature " worthy of the chemistry prize

    西班牙巴倫西亞大學和伊裡布里爾島大學的研究成果還不清楚會有何種結果，但是評委們認為他們寫的切德乳酪在溫度影響下的超聲聲速變化能夠獲得搞笑諾貝爾化學獎。
  20. The application of longitudinal pulse - echo is relatively simple, which can provide information of the thin layers such as the depth, ultrasonic velocity, attenuation etc

    縱波脈沖回波法簡單易行，能夠獲得薄層厚度、聲速和衰減等信息。
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