頻譜試驗 的英文怎麼說

中文拼音 [bīnpǔshìyàn]
頻譜試驗 英文
spectrum test
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 譜 : Ⅰ名詞[書面語]1 （按類別或系統編成的書或冊子等） table; chart; register 2 （指導練習的格式或圖形）...
  • 試 : 名詞（古代占卜用的器具） astrolabe
  • 驗 : 動詞1. （察看; 查考） examine; check; test 2. （產生預期的效果） prove effective; produce the expected result
  • 頻譜 : frequency spectrum; frequency content; spectrum; power density spectrum; power spectrum; [系統] s...
  • 試驗 : trial; experiment; test
  1. The modified traveling wave monopole model is employed in simulating the electron beam in crt of computer vdu. meanwhile acceleration fields of the electron beam are studied in details and its expression given for the first time with measured results. a novel analyzing method is proposed to study the spectrum of electromagnetic information leakage based on the viewpoint of field point, which has been verified effective by experiments

    採用經修正的行波單極子模型模擬計算機陰極射線管顯示器電子束，並詳細研究了電子束的加速場，首次給出了其計算公式和實驗測試結果；還提出了一種新的從場點出發的信息電磁泄漏頻譜分析方法，實驗證明了其有效性； 3
  2. In order to investigate the unsteady flow frequency domain performances of an axial flow compressor at different mass flow, rotating speed and blade row spacing, plus inlet flow distortion, and considering aerodynamic characteristics and stability of the compressor, the low speed research compressor ( lsc ) at college of energy and power in nuaa is used to carry out the experiment studies. a large amount of test data has been gained through dynamic pressure transducers embedded in the stator blades at the tip, middle and hub section, then fast fourier transform algorithm ( fft ) is applied to calculate the frequency data

    為探討軸流壓氣機在工作流量、工作轉速及動?靜葉排軸向間距變化時的葉片排流場非定常頻譜特性變化規律，並耦合進氣畸變的影響，同時與壓氣機氣動性能和氣動穩定性相關聯，作者利用南京航空航天大學能源與動力學院的低速大尺寸軸流壓氣機（ lsc ）試驗器，採取在靜子葉片表面埋入動態壓力傳感器的實驗方法，對葉尖、葉中和葉根三個截面的動態壓力進行了測量，獲得了大量的可靠的實驗數據。
  3. Effect on the characteristics of fatigue life of composite soils and dynamic modulus were discussed. the deformation behavior of stabilized soil on static and dynamic loading were compared. the characteristics of frequency spectrum of composite soils were analyzed in the thesis

    對水泥?水玻璃加固土進行循環荷載下的疲勞試驗研究，分析水泥?水玻璃加固土的疲勞壽命及其影響因素，以及固結土的動模量特徵，並對水泥土在動、靜荷載作用下的變形特徵進行比較，分析對比不同振幅與頻率的動荷載作用下的水泥加固土的應變響應及其頻譜特性。
  4. In light of the limitation of fast fourier transform ( fft ) for the method of traditional spectrum analysis to analyze the unsteady signal, wavelet and wavelet analysis are made for the typical unsteady process signal of starting up and shut down with the good characteristic of simultaneous localization in both the time and the frequency domains based on the field test on the vibration of two - row placed units in lijiaxia hydropower station, in which the signal is decomposed into different frequency band, and then the weak signal is caught and the dominant frequency is picked up for the analysis of the vibration source

    摘要基於李家峽水電站雙排機組振動的現場試驗研究，並且針對傳統頻譜分析方法傅立葉變換（ fft ）對于非平穩信號已力不從心這一缺陷，利用小波分析方法在時域和頻域上同時具有良好的局部化性質，通過對開停機這一典型非平穩過程信號進行小波及小波包分析，將其分解到不同頻帶內，獲取微弱信息和提取優勢頻率，並對其作振源分析，得出開停機初始時刻因水流不穩均出現強烈的振動現象，且低頻段信號能量最大，開停機過程水流脈動壓力和尾水渦帶擺動是引起定子基礎振動的主要原因。
  5. Based on the characteristics of information, there are two kinds of consistence test methods : static method and dynamic one. static consistence test method contains rank sum test, mood test, etc. as for the dynamic consistency test methods, the emphasis is focused on spectrum analyses, such as maximum entropy spectrum estimation, etc. in engineering applications, constituting precision evaluation projects of diverse war indexes have been intensively analyzed, all steps of evaluation have been synthetically analyzed and applied to engineering : an integrated evaluation example is provided

    驗前信息的一致性檢驗的優劣對小樣本下試驗鑒定的影響是很大的，文中根據驗前信息的特性給出了小樣本靜態檢驗方法和動態檢驗方法，靜態檢驗法有秩和檢驗、 mood檢驗法等，動態檢驗中重點對頻譜檢驗法，如對最大熵譜等作了理論分析。
  6. Semiconductor x - ray energy spectrometers, test procedures for

    半導體x射線能量頻譜儀的試驗程序
  7. When used in conjuction with a spectrum analyzer or a measuring receiver, the probes can be used to locate and qualify emi sources, as well as evaluate emc problems at the

    電纜饋送，當探頭與頻譜儀或測量接收機連用時，探頭可用於探測電磁干擾源，以及評估電路板和樣機試驗階段的電磁相容問題。
  8. A fft spectrum analyzer was used to measure the resonant frequency

    試驗時採用六種實大尺寸試材，共振頻率之測定系利用fft頻譜分析儀。
  9. The company has the advanced precision casting, the machine - finishing equipment and the check - out facility, including : disk wax mould machine, moistening slurry machine, intermediate frequency melting furnaces, cnc tooling machine, spectrometer, metallurgical microscope, hardness testing machine, computer material test machine. and so on

    公司擁有先進的精密鑄造、機械加工設備及檢測設備，其中包括：雙工位射蠟機、圓盤射蠟機、沾漿機、中頻熔化電爐，光譜分析儀、金相顯微鏡、硬度試驗機、電腦萬能材料試驗機， cnc數控車床、普通鉆銑床及閥門管件殼體、密封試驗機等。
  10. Optical amplifiers - test methods - part 10 - 2 : multichannel parameters ; pulse method using a gated optical spectrum analyzer

    光學放大器.試驗方法.第10 - 2部分:多道參數.選通光頻譜分析儀脈沖法
  11. Optical amplifiers - test methods - part 10 - 2 : multichannel parameters - pulse method using a gated optical spectrum analyzer

    光學放大器.試驗方法.第10 - 2部分:多通道參數.使用選通光頻譜分析儀的脈沖法
  12. Numerical simulation on the gas - solid multiphase flow in new type pulverized coal impact rich / lean burner is presented in it. under the guidance of the theory of computer aid test ( cat ), the dissertation uses particle - particle random impact model and the fluctuating - spectrum - random - trajectory ( fsrt ) model to simulate the gas phase flow and the particle phase flow based on the lagrange approach, compared with experimental results, and reaches satisfied efforts

    在cat計算機輔助試驗理論的指導下，結合實驗研究，本文採用包括脈動頻譜隨機軌道（ fsrt ）模型、顆粒和顆粒的隨機碰撞模型等先進的氣固多相流模型，在高濃度氣固多相流動數值模擬這一前沿研究方面得到了很有價值的結果。
  13. Four records with different earthquake magnitude, epicentral distance and spectrum ingredient are selected as the seismic input. the result of it compared with the result of test and spectrum analysis. lastly, on the basis of analysis result the conclusion is drawn and the recommendation and perspectives are put forward

    選取了el - centro波等四條不同震級、不同震中距及頻譜成份不同的地震波作為輸入波，對其進行了反應譜分析，計算結構在其作用下的動力反應，並與試驗結果及反應譜分析結果進行對比。
  14. In the experiment, we measured the frequency of the exhausted noise, and studied the muffler influence with the different rate of expansion

    通過試驗測量了s195柴油機的排氣噪聲頻譜，並且對採用不同膨脹比消聲器的消聲效果進行了試驗研究。
  15. It is studied that small inclusions in aluminum alloy are detected by ultrasonic transmission method in this paper. frequency analysis of the ultrasonic signal is done. harmonic factor and relative valid spectral power are calculated

    本文採用超聲穿透法對ly12鋁合金板材細小夾雜物進行了檢測試驗研究，並對超聲信號進行了頻譜分析，計算了諧波系數和相對有效譜功率。
  16. Optical amplifiers - part 3 - 2 : test methods for noise figure parameters - electrical spectrum analyser method

    光學放大器.第3 - 2部分:噪音指數參數的試驗方法.電頻譜分析儀法
  17. Optical fibre amplifiers - basic specification - test methods for noise figure parameters - electrical spectrum analyzer method

    光纖放大器.基礎規范.噪音指數參數的試驗方法.電頻譜分析儀法
  18. None but is the test spectrum abundant and controllable, it is possible to simulate the stresses environment needed for exposing weakness of the product. based on summarizing the present status of the vibration test and vibration environment simulation technology in the world, the topic of simulation of super - gaussian random vibration environment with controllable frequency spectrum and its applications in reliability enhancement testing is put forward. the main content and conclusions of the dissertation are as following : 1

    本文在綜述國內外振動試驗技術和振動環境模擬技術的基礎上，引出「頻譜可控的超高斯隨機振動環境模擬技術及其在可靠性強化試驗中的應用」這一主題，並緊緊圍繞該主題開展了如下研究工作: 1 .全面分析了振動激勵的功率譜密度量級、幅值分佈、帶寬以及試件結構的固有頻率、阻尼比等因素對疲勞損傷累積的強化效應，提出振動強化試驗激勵信號應具備的重要特性:頻譜可控和超高斯，確立了本文的研究主題和方向。
  19. A voltage signal tria ( tt / pw ) added by normal noise. is demonstrated for 2 - d dependence of the waveform on time and trials and 2 - d dependence of spectrum on frequency and trials to show different time domain and frequency domain properties of a random process including noise and signal

    以加上準常態雜訊之三角波電壓訊號為例，圖示含有雜訊電壓訊號其波形隨時間及試驗之二維變動及頻譜隨頻率及試驗之二維變動，顯示雜訊與訊號之隨機過程在時域與頻域之不同特性。
  20. A voltage signal rect ( tt / pw ) multiplied by normal noise is demonstrated for 2 - d dependence of the waveform on time and trials and 2 - d dependence of spectrum on frequency and trials to show different time domain and frequency domain properties of a random process including noise and signal

    以乘上準常態雜訊之方波電壓訊號為例，圖示含有雜訊電壓訊號其波形隨時間及試驗之二維變動及頻譜隨頻率及試驗之二維變動，顯示雜訊與訊號之隨機過程在時域與頻域之不同特性。
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