水聲發射器 的英文怎麼說

中文拼音 [shuǐshēngfāshèqì]
水聲發射器 英文
underwater sound projector
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 發 : 名詞（頭發） hair
  • 射 : Ⅰ動詞1 （用推力或彈力送出） shoot; fire 2 （液體受到壓力迅速擠出） discharge in a jet 3 （放出） ...
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 水聲 : 1. [物理學]underwater sound2. （水發出的聲音） sound of water
  1. Acoustics - high - power characteristics and measurements of underwater sound projectors

    水聲發射器的大功率特性和測量
  2. Acoustics - high - power characteristics of underwater sound projectors and their measurements

    聲學水聲發射器的大功率特性和測量
  3. Development in the field of projector design is spurred on mainly by three motivating forces : the extensive research in underwater propagation establishes the advantages of increasing lower frequencies for long range detection, the advent of new active and structural materials leads to substantial improvements in transducer performance, applications of the computer technology

    發射換能器設計的發展主要有三方面的推動力：對水聲傳播的廣泛研究確立了低頻應用於長距離探測的優勢，新的驅動材料和結構材料的發展使得換能器在性能方面得到提高，計算機技術的應用。
  4. Travel time is the key point of system, its measure quality decides the survey precision of the stress. time to digital convertor ( tdc ) was applied to accomplish the precision time interval measurement. at the same time, one transmitter - two receivers probe arrangement and zero - crossing detecting method were also applied to reduce the errors in measurement

    傳播聲時是整個測量系統中的關鍵量，其測量水平決定應力的測量精度，對此本文採用時間-數字轉換器（ timetodigitalconvertor ， tdc ）完成高精度時間間隔測量，在實現過程中又分別採用「單端發射-雙端接收」的探頭布局模式和「過零檢測」手段來降低系統檢測誤差。
  5. Based on apdl, the design language of finite element analysis software ansys, and visual c + +, the software on acoustics design of underwater cylindrical shell structure is developed. when input parameter of the cylindrical shell in the interface redeveloped in this paper, the software execute the batch file of apdl in the vc process to establish the finite element modal and carry out the analysis, the analysis result and the vibration mode can also be displayed. furthermore, the software has been developed to process the acoustics optimization design of the finite cylindrical shell with stiffener in appointed frequency range

    本論文從便於工程實際應用出發，對使用有限元分析軟體進行二次開發以方便結構振動分析及改進結構設計的方法和過程進行了研究，在此基礎上對水下航行器圓柱殼體的結構聲學特性進行了分析，在指定頻率區間，對結構以振動輻射聲功率級為目標函數進行了部分參數的結構優化設計，與此同時，為了方便有限元分析軟體的使用和簡化設計過程中大量重復的工作，利用ansys提供的參數化設計語言apdl （ ansysparametricdesignlanguage ）結合vc對有限元軟體ansys進行了二次開發，形成了一體化的水下圓柱殼體結構聲學設計軟體。
  6. As result, a new method is presented by using the acoustic emission ( ae ) signal from stem of individual plant as its demand information. based on virtual instruments technique, which is becoming a popular tool in measurement and automation fields international, a computer - based detecting system is developed for the fast, real - time measurement. take tomato crops for testing example in greenhouse, the relation between ae and transpiration, environmental factors has been studied

    因此，從植物本身出發，本文在國內首次採用了以植株莖部聲發射信號作為農作物需水信息的新方法，運用目前在測控領域國際流行的虛擬儀器技術，建立了對作物植株莖部聲發射信息進行實時、快速測量的微機檢測系統，並以溫室盆栽番茄為對象，研究了聲發射信息同植物蒸騰以及環境因子間的關系。
  7. The thermocline causes omittable effect on the intensity decaying speed. but the site of hydrophone affects the reverberation intensity when hydrophone lies upper than the thermocline, the reverberation intensity is greater than when there is no thermocline, and vice versa. at last, the average intensity of reverberation for bistatic case had been deduced

    發射聲源與水聽器在聲速躍變層上方時，水聽器接收到的混響強度比無聲速梯度時接收到的混響強度大；發射聲源與水聽器在聲速躍變層下方時，水聽器接收到的混響強度比無聲速梯度時接收到的混響強度小。
  8. Through the internet, by using another transducer as signal receiver, the b & k hardware and ni software are networked connected, and are combined to give a complete signal process system

    藉由單一水下聲音傳感器，控制發射八種不同頻率之水聲，用以模擬多枚傳感器功能；再藉由另一隻傳感器之接收，經由訊號處理及辨識達到簡易之內定通訊及控制指令。
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