頻率準確度 的英文怎麼說

中文拼音 [bīnlǜzhǔnquèdù]
頻率準確度 英文
frequency accuracy
  • 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...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 準 : Ⅰ名詞1 （標準） standard; guideline; criterion; norm 2 （目標） aim; target Ⅱ動詞1 （依據; 依照）...
  • 確 : 形容詞1. （符合事實; 真實） true; reliable; authentic 2. （堅固; 堅定） firm
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 頻率 : frequency; rate
  1. Based on the real situation of submarine and antisubmarine warfare ( asw ), according to the classical design theory of transducer or transducer array, a sonar will be researched and made, which has the feature of more wider bandwidth, more lower operating frequency, more lager radiation acoustic power, more farther operating distance, more higher researching efficiency and more higher directive accuracy

    本文根據現代潛戰和反潛戰（ asw ）的實際情況，按照經典的換能器和基陣的設計理論，研製聲吶，旨在擴展其頻帶寬度、降低其工作頻率、增大其發射功率、擴大其作用距離以及提高其搜索效率和定向準確度。
  2. Wherever data exists, numbers exist, and computers can do marvellous calculations with them. but what does all of that have to do with increasing bits and kilohertz

    不管任何數據或數字資料輸入我們的電腦都能很準確的計算，但是這和增加音質解析度及采樣頻率又有何關系呢？
  3. A new method for measuring the vibration of shadow mask without touch by detecting the light density with reflection type optical fiber sensor is presented. the measurement system based on the new method is designed to make the vibration measurement easier working, faster calculating, and get more precise results. it is an important measurement and analysis tool to improve the performance of shadow mask and display quality of cpt

    本文提出了基於單光纖光強度反射法的非接觸式微振動測量系統的原理，並設計製造了該測試系統，探索出了簡單方便可靠的測量方法，能夠準確客觀地反映蔭罩振動的各項參數（各振動模的振動頻率、振幅、衰減時間） ，實現了測試裝置的簡便化和測試過程的自動化，為cpt張緊式蔭罩系統的性能改進與顯示質量的提高提供了有效的測試分析手段。
  4. 4. using processed frequencies and first order modal dofs in a few points as network inputs, trained neural network gives excellent assessment results of a steel truss bridge

    4 、本文以結構的低階頻率和少數節點的一階振型分量，經預處理後作為神經網路輸入，準確實現了對一鋼析粱橋的損傷位置和損傷程度識別。
  5. From the result we get the following conclusion : for narrow - band signal, the effect of the method based on fft is best. for wide - band signal, when snr is up to certain degree ( higher than - 7db or so ), the curves of square error of modified methods are more obvious and closer to crb. for an echo composed of more than one frequency or direction, space - frequency distribution could show more direct information of frequency and direction, which is more advantaged to make precise judge and estimation for doa of echo

    從估計結果發現，對于窄帶回波信號，基於fft的方法估計性能大大優于其他方法；對于寬帶回波信號，在信噪比達到一定程度（高於約- 7db ）時，補償后的幾種估計法的性能改善均比較明顯，誤差曲線越來越接近crb曲線；對于回波中存在多頻率多方位的情況，空間?頻率分布圖能提供較為直觀的頻率及方位信息，因此應用空間?頻率估計法來進行方位估計，更有利於進一步對回波的具體方位進行準確判斷和估計。
  6. Frequency accuracy check at 6 different frequency settings at one voltage level ( normally at 1 v )

    一個電壓電平（一般為1v ）六個不同頻率的頻率準確度檢查。
  7. The 33250a tcxo timebase gives you frequency accuracy of 1 ppm for your most demanding applications

    33250a tcxo時基可達到1ppm頻率準確度，從而適應有最嚴格要求的應用
  8. Additional voltage measurement at other frequency settings as well as frequency accuracy check may be offered at extra charge

    本所亦可提供在其他頻率的電壓測量服務及頻率準確度檢查，但須另行收費。
  9. The basic calibration of a rf signal generator normally includes tests on output level accuracy, level flatness, and frequency accuracy

    射頻信號發生器的基本校正工作一般包括測試輸出電平準確度、電平不平坦度及頻率準確度。
  10. The laboratory offers calibration service for watchesstop watches with internal crystal and step motor. the calibration of watchesstop watches includes the measurement of its relative frequency accuracy

    計時表本所為石英及機械表提供校正服務，包括測量計時表內部頻率的準確度。
  11. The calibration of a spectrum analyser normally includes checks on frequency accuracy, level flatness, level linearity, input attenuation and calibration reference output

    頻譜分析器的校正工作一般包括檢查頻率準確度、功率電平不平坦度、標度線性、輸入衰減及參考輸出值的校正。
  12. A new harmonic analysis method for electric power systems based on triangle basis functions neural network was presented, the convergence theorem of the algorithm was proposed, and a window function and interpolation algorithm were employed to correct the frequency of fundamental waves

    摘要提出了一種新的基於三角基函數神經網路的電力系統諧波測量方法，給出了該神經網路演算法的收斂定理，並採用加窗插值演算法修正基波頻率的準確度。
  13. The results of research indicate that this tool has highly vertical and radial resolution. it can calculate accurately the invaded zone and the invaded radius

    研究結果表明，高頻等參數感應具有極高的縱向解析度和較好的徑向探測特性，能夠準確地計算地層真電阻率、侵入帶電阻率及侵入半徑。
  14. Test result shows that compared with traditional similarity model of word frequency, the weighted semantic similarity model improves the precision obviously

    實驗表明，本文提出的基於語義樹的加權語義相似度模型與傳統的詞頻相似度模型相比，準確率有明顯提高。
  15. According to the numbers of segmentations, dts has multi scale feature and can reflect different trend similarity of time series under various analyzing frequency. 2 ) an enhanced algorithm, based on dual threshold value, and the conception of sub - series linear are proposed. relative point average error is used to measure the linear degree of sub series, which produced by bottom _ up algorithm

    對應時間序列線性分段數目的不同，序列趨勢距離具有基於時間的多尺度分析特性，可以有效反應不同分析頻率下時間序列的相似程度； 2 ）採用相對點平均殘差衡量bottom _ up演算法劃分的子序列線性度，提齣子序列線性度概念和一種雙誤差閥值改進演算法，大大提高了趨勢序列模型的準確性。
  16. Based on the results of previous researchers, the following instigations have been carried out in this paper : ( 1 ) employing a reasonable local resonance model which can accurately embody the heat - generation behavior due to resonance and vibration - heat mode in delaminated region, the dynamic response and temperature distribution in the small delamination region of a laminated beam are formulated. influence of the excitation frequency on the temperature gradient formation is analyzed numerically, and several meaningful conclusions are drawn. ( 2 ) for laminated plates with delaminations, due to complexity of the analytical solution, the finite element method is employed to analyze their temperature distributions and satisfactory results are also obtained

    本文在前人研究的基礎上，對此方法進行了進一步的探討，主要做了以下的工作： （ 1 ）選取合理的、能夠準確反映由共振而產生熱量的行為的局部響應模型，以及合理的振動熱模式，推導了一維層合梁小脫層區域的振動響應及梁的溫度分佈，並編製程序計算了該層合梁在激勵一段時間后的溫度分佈趨勢，分析了激勵頻率對溫度梯度形成的影響，得到了一些有意義的結論； （ 2 ）對於二維層合板，由於解析解的形式異常復雜，本文採用有限元計算軟體對其溫度分佈進行了分析，也得到了較為滿意的結果。
  17. At last, the stability of frequency can be obtained according to the case that the phase between two frequency source varies with time

    最後根據兩頻率源間的相位隨時間的變化情況，換算出被測頻率源的頻率準確度和穩定度情況。
  18. The calibration of a frequency ( time interval or period ) counter will basically include timebase calibration, and frequency ( time interval or period ) measurement accuracy check at 6 different test points. calibration at additional test points can be arranged on demand

    一個頻率計（時距計或周期計）的校正工作基本包括時基校正及按六個不同測試點進行頻率（時距或周期）準確度的檢查。額外試點的校正服務，可應要求而安排。
  19. The basic calibration for a phasemeter include checking of phase angle measurement accuracy at equal signal levels for 4 different frequencies

    相位計的基本校正工作包括按四個不同頻率的相等訊號電平，檢查相角測量的準確度。
  20. Comparing with the conventional methods using equipments, this approach is simple, efficient and precise and precise and can be realized easily

    與傳統的藉助于硬體測量頻率穩定度的方法相比，此方法靈活簡單，可達到較高的測量準確度，容易實現。
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