頻率測定 的英文怎麼說

中文拼音 [bīnlǜcèdìng]
頻率測定 英文
determination of frequency
  • 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
  • 測 : 動詞1. （測量） survey; fathom; measure 2. （測度; 推測） conjecture; infer
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 頻率 : frequency; rate
  • 測定 : determine; determination; setting-out; admeasurement; assignment; assay; finding
  1. The method can be used in the measurement of periodic and nonperiodic signal. according to the high accuracy and fixed gate - time measurement method, based on the multiple period synchronization method, the high speed, high accuracy and continuous frequency measurement is accomplished

    將其再與一種從多周期同步法發展而來的高精度、定閘門法相結合，從而實現了高速、高精度、連續頻率測量，這非常適合非頻率量的頻率傳感信號的測量。
  2. Eddy - current sensor conversion circuit consist amplification circuit, band - pass filter circuit, demodulation circuit, differentiation phase and data sampling circuit. these circuits are used to convert the test signal of eddy - current sensor to discrete signal tend to process. the microprocessor system that formed of dsp chip is used to data fitting of test system, data displaying and data communicating with personal computer, etc. the interference questions of hardware design and the measure of eliminating interference signal in the subject are introduced in the last of this chapter

    硬體電路的設計主要分三大部分來實現：激勵源電路部分，由分頻電路和頻率合成電路組成，產生頻率穩定的激勵信號以確保檢測任務的正常進行；傳感器變換電路部分，由放大電路、濾波電路、檢波電路、鑒相電路和數據採集電路組成，主要將電渦流傳感器檢測線圈檢測到的信號變換成只含有被測信息的離散信號，易於后續電路處理；由dsp晶元構成的微處理系統，主要完成檢測系統的數據擬合、顯示及與主機通信等功能。
  3. Verification regulation of wide band frequency stability measurement set in time domain

    寬頻帶頻率穩定度時域測量裝置檢定規程
  4. The thought that sampling frequency in targets measure system confirm as 3 is studied for the first time. it is proved from three aspects : the frequency spectrum of track, the error requirement of project and the rate of maximum number of allowable lost points in project

    本文首次就目標坐標測定儀中采樣頻率確定為3hz的思想進行了研究，並分別從目標航路功率譜密度、實際工程中誤差要求和允許的最大漏測點概率等三方面加以論證。
  5. The concept of viffoal laser frequency stabilizaion is put fowi. the frequency stabilizaion at the center of doppler curve has been realized aller signal detecting, phase sensitive detecting, integrating and high voltage amplifying circuits with fm spectroscopy a frequency stability of l0 -, has been obtained with a reproducibility of l0 - 9. hyperfine spectra of, ', i, near 532nm have been studied via modul8tion tfansfer spectroscopy

    利用fm光譜法將激光單次通過碘吸收室進行線性吸收，再經信號檢測、混頻、積分和高壓放大等伺服電路，實現了在多普勒曲線中心處的頻率穩定，頻率穩定度和復現性可達10 ~ （ - 9 ）量級。
  6. Measurement of the capacitance for all settings of the first decade of a decade capacitance box, at one frequency

    按一個頻率，測量一個十進電容箱首十個數值所有定位的電容量
  7. Measurement of the capacitance for all settings of each additional decade of the same decade capacitance box, at one frequency

    按一個頻率，測量同一十進電容箱每額外十個數值所有定位的電容量
  8. This paper deals with problems of high accurate estimation of carrier frequency offset which is widely used in communication signals synchronization and frequency measurement. therefore, it ' is very importance for interception and location of signals

    通信信號載頻偏差的高精度估計廣泛應用於通信信號的同步和頻率測量當中，因此，對于信號的截獲和定位具有非常重要的作用。
  9. During the low strain dynamic test of the foundation pile, the adoption of the velocity sensor to the direct measurement of the relative displacement of the pile head is helpful to reducing the improper dependence upon the measured intrinsic frequency valuesof the pile soil system in calculating vertical bearing capacity of the single pile, and is hence conducive to raising the accuracy of the calculated vertical bearing capacity of the single pile

    基樁低應變動測中，採用速度傳感器直接測出樁頭的相對位移，在推算單樁豎向承載力時，有助於降低對樁土體系固有頻率測定值的過分依賴，從而有利於提高單樁豎向承載力推算值的準確程度。
  10. The basic calibration for a single decade ivd will include measurement of voltage ratio for all output settings of the ivd at one test frequency

    一個單盤感應分壓器的基本校正工作包括按一測試頻率，測量該電感分壓器所有輸出定位的電壓比。
  11. Model test analyses and natural frequency measurement methods of large turbo - generators on stator end windings and evaluation criteria

    大型汽輪發電機定子端部繞組模態試驗分析和固有頻率測量方法及評定
  12. The main function of the module is as follows : it can detect the cw signal transmitted by the active sonar, and measure the frequency of target signal and the direction of target. it can execute the tracking order sent by the display and control platform, and track the searched target, measure the target signal repetition intervals and target distance, and give the reliability of estimated distance

    該軟體的主要功能包括：對主動聲吶cw脈沖信號進行檢測，測量目標信號的中心頻率，測定目標的方位；執行顯控臺跟蹤命令，對搜索到的目標進行跟蹤，測量目標信號的重復周期，測定目標的距離，給出距離測量值的置信度。
  13. Testing the vibration acceleration signal of rail top ( lateral and vertical ), rail middle ( lateral ), rail bed side ( vertical ) and rail bed middle ( vertical ) with dasp vibration testing system, calculation of signals obtains the power spectral density and frequency response curves of different position

    測試橫向和垂向激振力下鋼軌不同部位的振動信號，進行頻譜分析，得出不同部位的頻率響應曲線。通過對頻響曲線的分析，得出不同方向激振力下鋼軌振動能量集中的頻率，確定不同方向激振力下鋼軌的主要振動部位和振動形式。
  14. Jinque co. has developed neo - generation reliable frame - structure ups, which is high frequency and on - line intelligent and whose height is 19 inchs. the product adopts cpu process, so it has excellent ability to calculating and accurately test every control point to guarantee reliability of quality. at the same time, due to the design of double - change power, the voltage and frequency are stable ; the product deletes all kinds of interrupted frequency and becomes power of sine wave to provide vital equipment with better power environment

    金雀公司根據網路系統的電源要求，開發出新一代高可靠的19英寸機架式高頻在線智能型gr系列ups ，採用cpu處理器，極強的運算能力，精確迅速地檢測ups各控制點，由於採用雙變換電源設計，供負載使用的電源電壓頻率穩定，濾除雜讀的純凈正弦波電源，為重要的設備提供更佳的電源環境。
  15. According to the present problems and developing tendency of hydraulic turbine governor, four main issues of this field are studied in this paper. the content include hydraulic control system, frequency measurement unit, stability of the discrete control system, optimization of control parameters and self - adjusting pid control strategy based on fuzzy logic. several main achievement and results are obtained and shown as follows : the electric - hydraulic pilot valve driven by step - motor is firstly proposed, which solves the problem that the electric - hydraulic converter of hydraulic turbine governor hydraulic servo is prone to be stuck and blocked and improves the systemic stability greatly

    本文根據水輪機調節領域存在的問題和發展趨勢，對水輪機調速器的液壓控制系統、頻率測量環節、離散調節系統穩定性與調節參數最優整定以及適應式參數自調整pid控制策略進行了研究，得到以下主要成果和結論：首次提出了採用步進電機驅動的步進式電液引導閥，從根本上解決了水輪機調速器電液隨動系統中存在的電液轉換元件發卡、堵塞問題，使電液隨動系統的可靠性大大提高。
  16. This paper introduces the basic concepts and importance of short - term frequency stability and phase noise, its expression in time domain and in frequency domain, the methods of measurements of phase noise and compares their advantages and disadvantages respectively

    摘要敘述了短期頻率穩定度、相位噪聲的基本概念和重要性、在時域和頻域中的表達方法以及各種相位噪聲的測量方法，並且分別比較了各種方法間的優缺點。
  17. The basic calibration for a multi - decade ivd will include measurement of voltage ratio at one frequency for all separate settings of the first and second dials of the ivd

    一個多盤感應分壓器的基本校正工作包括按一頻率，測量該感應分壓器的首個及第二個刻盤所有分開定位的電壓比。
  18. 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。
  19. The method can be used widely in high precision frequency, time and phase measurement. combined with a kind of precise, constant gate ' s measuring method that is derived from the several period synchronization measuring method, high speed, high precision, successive frequency measurement can be fulfilled. it adapts well to the sensor signal measurement of non - frequency

    此方法可以廣泛地應用於高精度頻率、時間及相位測量中，將其與一種從多周期同步法發展而來的高精度、定閘門測量法相結合，可實現高速、高精度、連續頻率測量，而這一點非常適合非頻率量傳感信號的測量。
  20. Digital signal board mainly implements frequency giving, data display and so on. analog signal board mainly detects current signals, voltage signals and implements fault protect

    數字介面完成頻率給定、數據顯示等功能；模擬介面完成電流、電壓檢測及保護等功能。
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