超聲波傳播 的英文怎麼說

中文拼音 [chāoshēngbōzhuànbō]
超聲波傳播 英文
ultrasonic propagation
  • 超 : Ⅰ動詞1 （越過; 高出） exceed; surpass; overtake 2 （在某個范圍以外; 不受限制） transcend; go beyo...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 傳 : 傳名詞1 （解釋經文的著作） commentaries on classics 2 （傳記） biography 3 （敘述歷史故事的作品）...
  • 播 : 播名詞（姓氏） a surname
  • 傳播 : 1 （廣泛散布） disseminate; propagate; spread; （over）; diffuse; transmit; run 2 [物理學] propag...
  1. The movement inbeing of the ultrasonic motors, two type form method of elliptical movement are deeply investigated. its driving mechanism is studied also by geometric method. the ordinal progressing condition of a forced traveling wave in the elastic plate is investigated

    研究了超聲波馬達的驅動機理，對超聲波馬達驅動的本質? ?橢圓運動的兩種形成方法進行了詳細研究，利用幾何分析法研究了行波超聲波馬達的傳動機理，分析了定子彈性體中行波有序傳播的條件。
  2. Considering the nonuniqueness and instability of ultrasonic computerized tomography for structural concrete as well as the ultrasonic transmission characteristics in concrete, a natural weight matrix with dear physical meaning was introduced in the inverse algorithm

    摘要針對混凝土超聲波層析成像結果不唯一和穩定性差的問題，首先依據超聲波在混凝土中的傳播特點，在反演演算法中引入物理意義明確的自然權矩陣，對走時較小的射線和射線較密的成像單元加以重權。
  3. A two - dimensional plain strain finite element model of infinite plate is developed to investigate the ultrasonic wave propagation and scattering on three kinds of cracks : parallel to the surface, 450 oblique angle to the surface, and quarter - circle

    摘要建立了無限長板的具有吸收邊界的二維平面應變有限元模型，在研究了脈沖超聲波在無限長板中傳播的基礎上，對板中平行於表面的裂紋、與表面成45的斜裂紋和四分之一圓周弧形裂紋三種情況的脈沖超聲波散射進行了重點研究。
  4. By comparing with the velocity in normal person ' s shinbone, osteoporosis can be diagnosed conveniently

    與定量超聲波在正常脛骨中的傳播速度相比較，可以為骨質疏鬆癥提供便捷的診斷手段。
  5. The propagation velocity of ultrasound in patient ' s shinbone can be achieved by figuring out the time span between emergent wave and echo wave

    根據相關公式，只需計算出超聲波發射信號和回波信號的時間差，即可獲得定量超聲波在受試者脛骨的皮質骨中傳播速度。
  6. I told you pulsing the ultrasonics would work

    我都說，用脈沖傳播超聲波會行
  7. At the same time, the relationship between the sound speed traveling through the concrete and the compressive strength of concrete are analyzed, and then * relationship equations are obtained

    接著，測試了混凝土宏觀力學強度，同時對混凝土超聲波傳播速度檢測值和抗壓強度測試值進行回歸分析，給出它們之間的關系方程式。
  8. 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
  9. Ultrasonic pulses behavior in various - size concrete specimens under compression

    不同尺寸混凝土試件受壓狀態下超聲波傳播特性研究
  10. Its principle is on the basis of ultrasonic wave theory ; spurt water column is the medium of ultrasonic transmission

    它用超聲波原理進行檢測，以噴流的水柱作為超聲波傳播的介質。
  11. 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。
  12. Spurt water column not only is a good coupling medium of ultrasonic, but also can get rid of impurity, such as power, vapor and oil film on the surface of the measured object, so this sensor can adapt various environments

    因為水柱不僅是超聲波傳播的良好介質，還可將被測物表面的粉塵、水汽、油膜等雜質吹走，使系統具有良好的環境適應能力。在惡劣環境下進行位移測量時，該傳感器具有其他儀器不可比擬的優越性。
  13. The system could measure certain distance with the reflected wave on condition in which the speed of transmitting wave is fixed

    該系統以空氣中超聲波的傳播速度為確定條件，利用反射超聲波測量待測距離。
  14. The ultrasonic quenching of medium carbon alloy high strength steel 35crmnsi was conducted, using h66025t ultrasonic generator. the result showed the mertensite lath was fined obviously and the nucleation rate was improved. it proved the theory that the propagation of elastic wave in austenite can promote the nucleation of martensitic transformation

    採用h66025t超聲波發生儀，對中碳合金高強度鋼35crmnsi進行超聲波淬火，發現馬氏體板條明顯細化，提高了馬氏體相變形核率，證實了彈性波在奧氏體中傳播促進馬氏體相變形核理論。
  15. 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。
  16. In the process of building and using the mass concrete structures, because of the effect of out - side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance using nondestructive testing method to test the concrete ' s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseases this dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic fem to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, researched the principles of the first - arriving waves " phase when the cracks " depths are not same, obtained the relation between the inversion point and the cracks " depth, which has the direction sense in the application of projects, the second part of this dissertation is ct, which used the ultrasonic wave running through the tested - substance to get arriving - time of the ultrasonic wave, then inverse the image this dissertation drawed one ct program which can well present the different little cells " ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested - substance, ct has the better using foreground.

    在混凝土結構的施工及使用過程中，由於受其自身及外界各種因素的影響，常常會產生一些缺陷，對結構物的承載能力和耐久性造成嚴重影響，採用無損檢測技術進行質量檢測和健康診斷，這對混凝土結構開展安全、穩定性評估以及病害隱患治理研究具有重要意義。本論文主要針對大體積混凝土結構缺陷的檢測方法展開研究工作，重點討論了超聲波法檢測混凝土結構裂縫的基本原理和方法及其特點、適用范圍，運用動力有限元數值模擬其檢測過程，探討了有裂縫缺陷的混凝土結構在脈沖荷載作用下彈性波的傳播及其變化特徵，研究了不同裂縫深度下首波相位變化規律，得出了反轉臨界點與裂縫深度之間的關系，這對實際工程應用具有指導意義。聲波ct是一種新的無損檢測技術，它是利用聲波穿透被檢測體獲取聲波接收時間，來進行計算機反演成像的技術。
  17. Finally, some important conclusions were drawn, that is, using distributed pzt transducers, ultrasonic guided waves are generated and received in a pipe. usually, there are many different modes of guided wave propagating in the pipe and these modes are generally dispersive, the specific exciting signal of a harming windowed toneburst with a central frequency of 70khz for decreasing the effect of dispersion was selected. and guided wave are generated using 16 distributed pzt transducers in a circumferential direction for suppressing flexural modes

    首先，對當前本課題研究領域的進展作出綜述，並簡要介紹與超聲導波技術相關的理論基礎；其次，建立了一套有效的實驗裝置，在此實驗裝置基礎上，重點研究了採用分散式pzt傳感器在管中激勵和接收特定模態超聲導波的方法：根據在管狀波導中傳播的超聲波具有頻散現象及多模態特徵，選擇具有單一頻率的特定信號激勵超聲導波，使其頻散最小；同時採用分散式傳感器抑制不同模態的波型。
  18. The effects of water ratio, crack, strain and temperature on the acoustic wave velocity in granite samples were investigated systematically by means of tico, an ultrasonic concrete tester

    摘要應用超聲波混凝土測試儀（ tico ） ，系統研究了含水率、裂紋、應力和溫度對花崗巖內波速傳播的影響。
  19. Influences of elastic modulus ' change of sheet on the properties of lamb wave propagation

    板材彈性模量變化對超聲蘭姆波傳播特性的影響
  20. The velocity of ultrasonic in water can be changed along with the change of the temperature. it will bring bigger inaccuracy and can not reach the requirement of system if the temperature factors are not considered in

    超聲波在水中傳播的速度會隨著溫度的變化而他變化，如果不考慮溫度對超聲波速度的影響將會帶來大的誤差，滿足不了系統的要求。
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