水中傳聲器 的英文怎麼說

中文拼音 [shuǐzhōngzhuànshēngqì]
水中傳聲器 英文
hydromicrophone
  • 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...
  • 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）...
  • 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
  • 水中 : aquatic; water水中爆炸 water shooting; 水中浮游生物 hydroplankton; 水中氣泡 underwater bubble; 水...
  1. The main results of this work are summarized as follows : 1. for the first time, biomimetic bulk acoustic wave ( baw ) sensors based on the molecularly imprinted polymers ( mips ) were fabricated and applied to the determination of phenobarbital and pyrimethamine in organic and aqueous solution, respectively

    採用非共價印跡技術以-甲基丙烯酸為功能性單體、乙二醇二甲基丙烯酸酯為交聯劑首次制備了液相分子印跡體聲波仿生傳感器，並分別在有機相和水相中測定了藥物苯巴比妥和乙胺嘧啶。
  2. This system is possible to deploy onto the rov to have an extra safety control

    文中將分別對于傳感器的特性，水聲頻響的選擇以波浪之影響分別加以說明。
  3. Compared with the pressure hydrophone, vector transducer can provide both the information about pressure ( scalar quantity ) and particle velocity ( vector quantity ) of the sound field, which offers more possibilities for signal processing. so vector transducer and its signal processing have attracted the attention of researchers both native and foreign. in this thesis, a method of correlation equations for pressure gradient transducer is presented, and the estimation of multi - signal parameters with single vector transducer is given

    與傳統的聲壓水聽器相比，矢量水聽器既能獲得聲場中的聲壓這一標量信息，又能獲得聲場中質點振速這一矢量信息，這為其信號處理帶來更大的空間，因此矢量水聽器及其相應的聯合信息處理技術日益成為國內外科技工作者們研究的熱點。
  4. A large planar microphone array, which consists of 111 microphones, was successfully applied to obtain a two - dimensional mapping of the sound sources on a landing aircraft. the focus of study in this paper is on the landing gear noise source. the spectra, directivities and sound pressure levels of flap side - edge noise of 7 narrow - board commercial aircraft and 7 wide - board commercial aircraft are presented. it is found that the landing gear noise spectrum is broadband with some single tones in some cases. the directivity of the total sound pressure level of a landing gear noise resembles that of a horizontal dipole. the level differences between the various aircraft landing gears are larger than those expected from the airspeed differences. it is thus expected that the louder noise emission of the landing gears can be reduced by redesigning

    應用由111個傳聲器組成的平面傳聲器陣列對當前流行的民用客機進場著陸過程中的機體噪聲源進行了實驗測量，本文對七架窄體客機和七架寬體客機的起落架噪聲進行了分析，得到了起落架噪聲的頻譜特性、指向特性和聲級變化.研究發現，起落架噪聲的頻譜是由寬頻隨機噪聲與一些較為明顯的單音噪聲源組成，起落架噪聲的指向性類似於一個水平放置的偶極子.不同飛機起落架噪聲的聲級相差較大，這說明可以通過重新結構設計降低起落架噪聲。
  5. 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。
  6. Abstract : a large planar microphone array, which consists of 111 microphones, was successfully applied to obtain a two - dimensional mapping of the sound sources on a landing aircraft. the focus of study in this paper is on the landing gear noise source. the spectra, directivities and sound pressure levels of flap side - edge noise of 7 narrow - board commercial aircraft and 7 wide - board commercial aircraft are presented. it is found that the landing gear noise spectrum is broadband with some single tones in some cases. the directivity of the total sound pressure level of a landing gear noise resembles that of a horizontal dipole. the level differences between the various aircraft landing gears are larger than those expected from the airspeed differences. it is thus expected that the louder noise emission of the landing gears can be reduced by redesigning

    文摘:應用由111個傳聲器組成的平面傳聲器陣列對當前流行的民用客機進場著陸過程中的機體噪聲源進行了實驗測量，本文對七架窄體客機和七架寬體客機的起落架噪聲進行了分析，得到了起落架噪聲的頻譜特性、指向特性和聲級變化.研究發現，起落架噪聲的頻譜是由寬頻隨機噪聲與一些較為明顯的單音噪聲源組成，起落架噪聲的指向性類似於一個水平放置的偶極子.不同飛機起落架噪聲的聲級相差較大，這說明可以通過重新結構設計降低起落架噪聲。
  7. Results show that triple reflection signal and quintuple reflection signal of ytype and s type are less 12db, 16. 67 db and 11. 8 db, 17. 3 db than that of " - ' " type saw mass sensor device. experiment results show that insertion loss ( about 14db ) of the devices in center frequency is close to the theoretical value ( about 16db ) developed by p matrix representation. sensing characteristics of y type and s type saw mass sensors have been also tested and analysed in detail. ethanol and pure water mixed solution containning trace nacl is titrated into mass loading area of y type and s type saw mass sensors devices to detect their mass loading sensitivities

    本文對y型和s型雙聲路saw質量傳感器件的傳感特性進行詳細測試分析，在y廠書型和s型雙聲路聲表面波器件的質量沉積區中滴定含有微量naci溶質的乙醉和水的混合溶液，以測試器件的質量沉積效應靈敏度，它們分別約為2967ppm . cm丫夢g （ y型）和3一15ppm . emz /協g （ s型） ，與理論值38 . 93ppm . emz / 「 g相近，拼處于國內外同型和s型雙聲路聲表面波器件的頻率一溫度特性幾，其單聲雙聲路相對溫度系數約為10一12hz / ，處于國內外同類研究先進水平。
  8. The dada fusion technique of the dempster - shafer evidence theory is described systematically and applied in the target detection of ship. on the base of studying and simulating the through signatures of the sound field, the magnetic field and the hydraulic field of ship, the method of constructing basic probability assignment of sensor is analyzed. then the application of target detection of ship based on the dempster - shafer evidence theory is successfully simulated, and some conclusions, with reason, is drawn

    本文介紹了數據融合技術的基本概念、建模思想及研究內容，系統地研究了d - s （ dempster - shafer ）證據推理理論的數據融合技術及其在艦船目標檢測中的應用，並在艦船聲場、磁場和水壓場通過特性的基礎上構造出各傳感器的基本概率分配函數bpa （ basicprobabilityassignment ） ，然後以此為基礎將d - s證據推理理論成功地應用於艦船目標檢測的模擬，並得到比較理想的模擬結果。
  9. The forming mechanism of crosstalks in the tdm system was analyzed theoretically, and the relationship between crosstalks and the extinction ratio of optical pulse modulator used in the tdm system was investigated. the interchannel and intrachannel crosstalks in the wdm system were discussed separately, and the contributions to crosstalks were appraised from architecture ’ s alteration, the finite isolation between channels in multiplexers or demultiplexers, and nonlinear effects in the system. noises in the large - scale multiplexing system were studied theoretically, and all kinds of factors were considered that have relation to noises, phase resolution, and dynamic range of the system, such as multiplexing channel number, the length of the transmission fiber, using in - line erbium - dropped fiber amplifiers or not, and so on

    本文從理論上分析了光纖水聽器時分復用系統串擾的形成機理，分析了光脈沖調制器的消光比與系統串擾的關系;分別對光纖水聽器波分復用系統的異頻串擾和同頻串擾進行了理論分析，研究了光纖水聽器波分復用結構、波分復用器與解復用器隔離度等因素以及非線性效應對系統串擾的影響;對大規模光纖水聽器復用系統噪聲進行深入細致的理論分析，研究了系統噪聲、相位解析度、動態范圍與復用數目、傳輸光纖長度、中繼光纖放大器等諸多因素的關系。
  10. A medium frequency - small size vector hydrophone of co - vibrating type is wrapped with low density compound material and in shuck only one piezoelectric ceramic accelerator is used for each channel to measure the vector components of the underwater acoustic field

    摘要中頻小型同振式矢量水聽器採用低密度復合材料作為矢量通道外殼、壓電加速度計作為內部振動傳感器，以拾取水下聲場中的矢量信息。
  11. Three layers of multi - sensor data fusion are presented in the motion control system of auv, which are data layer, control layer and perception layer. hi the data layer, some data fusion methods are applying to decrease the negative influence of low resolution and high invalid - point rate of sensors and improve the data accuracy and reliability

    在數據層中，研究多傳感器數據的融合方法（結合傳感器的故障診斷、團隊一致法和線性平滑濾波）以彌補水聲傳感設備解析度低、野點率高的缺陷，提高數據的精度和可靠性。
  12. Chapter 3 focuses on translating the c code into assembly code. the implementation and optimization involves issues of assignment of variables and memories, pass of function parameters, addressing modes, control of nested repetition, use of ar registers, pipeline conflicts, and so on

    本文從改寫c源碼為c54x匯編代碼著手，對實現過程中的變量存儲區分配、參數的傳遞、尋址方式的選擇、循環的嵌套與控制、輔助寄存器的使用、流水線等方面的問題進行了設計和優化，在c54x上實時實現了g . 729a聲碼器。
  13. In theoretically, analog optical fiber link can carry out the signal transmission transparently. however, because of the limit of the component level, during the transmission and distribution of the radar signal, noises and interferences from the optic - link may distort the signal and affect the system performance and the array signal processing

    模擬光纖鏈路理論上可以實現信號的透明傳輸，可由於受到器件水平的限制，在整個光傳輸和分配過程中，雷達信號必將受到來自光路噪聲或干擾的污染，從而產生某些畸變和失真，這些非理想因素必然對陣列系統的性能指標和陣列系統的信號處理產生影響。
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