頻率測度 的英文怎麼說
中文拼音 [bīnlǜcèdù]
頻率測度
英文
frequency gauging-
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。Methods for calibration of vibration and shock pick - ups - resonance frequency testing of undamped accelerometers on a steel block
安裝在鋼塊上的無阻尼加速度計共振頻率測試Methods for calibration of vibration and shock pick - ups. resonance frequency testing of undamped accelerometers on a steel block
振動與沖擊傳感器的校準方法安裝在鋼塊上的無阻尼加速度計共振頻率測試The short - baseline interferometer ’ s angle measurement accuracy is influenced by phase difference measuring accuracy, the base length measuring accuracy, the system operating wavelength ( frequency ) and so on, the article analyzes the existing theory, and emphatically analyzes the influence of base length measuring accuracy to the precision of angle measurement
短基線干涉儀測角精度受相位差測量精度、基線長度測量精度、系統工作波長（頻率）測量精度等因素的影響，文中，在對原有理論進行分析的基礎上著重分析了基線長度測量精度對系統角度測量精度的影響。The ? 1 word count error exists in nearly all kinds of digital time and frequency measuring instrument and it affects the instrument ' s measuring precision tremendously
在所有的數字式時間及頻率測量設備中，幾乎都存在著1個字的計數誤差。它的存在，極大地影響儀器的測量精度。On the basis of saw technology, this thesis designs a saw humidity sensor. include the design of idt ( interdigital transducer ), the thin film as well as the frequency measurement system
在對saw傳感器技術進行研究的基礎上，本文設計了一個saw濕度傳感器，包括idt （叉指換能器）的設計、薄膜的設計以及頻率測量系統的設計。There is difference frequency measurement requirement for every part of pid regulating, difference between dynamic quality and static quality in response time and accuracy. according to these, it use the interrupt functions and high - speed counter of the simens s7 - 200 plc cpu226 basic unit and some peripheral circuit to measure frequency ; in software designed, the procedure frame of hydraulic - turbine governor and disperse process of parallel pid are analyzed, an improved pid algorithm is adopted to realize a pid regulation mode with variable structure and parameters ; the mechanical liquid - pressure system of the hydraulic - turbine governor is with electric - hydraulic converter unit of step motor. according to the drive character of five phase of response step motor, a variable frequency regulated voltage driver unit is designed in order to realize interface between plc and driver of step motor
本文利用s7 - 200plc自身的特點設計了頻率測量單元，根據pid調節各個環節的特點，以及調速器動態特性、靜態特性對頻率測量的實時性和精度要求的不同，利用s7 - 200plc基本單元中內置的高速計數器以及相應的外圍放大整形、分頻電路，實現了水輪發電機組頻率的測量；在軟體上，對微機調速器的整個程序框架、並聯pid的離散化過程進行了分析，選用改進的pid演算法實現了變參數、變結構的pid調節模式；調速器的機械液壓隨動系統具有步進電機電液轉換元件，採用五相反應式步進電機，根據其驅動特性設計了變頻調壓驅動器，實現plc與步進電機驅動器之間數字介面。Therefore, the paper mainly discusses the pluses and minuses of the multifarious frequency estimation algorithms, and develops an adaptive method of evaluation on dft for power system frequency, which is based on the equal - angle sampling principle
因此，本文著重論述了歷史上各種頻率測量演算法的優缺點，並在自適應調整采樣率的等角度采樣原則的基礎上，提出了一種基於dft的電網頻率測量的自適應估計演算法。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。The system increase the precision of frequency measurement using frequency measurement method based on least error square algorithm and using digital pre - treatment algorithm, which can eliminate the bad effect resulted from sqaure and high power harmonic
本系統採用了基於最小二乘的頻率測量方法，同時用數字預處理演算法消除頻率測量時的二次及高次諧波對測量的影響，提高了頻率測量的精度。A new method, which uses shaping circuit and programmable computer controller with appropriate software to measure frequency, is initially applied which overcomes the problems of low reliability and slow responding process of traditional frequency measurement unit, improves the reliability and dynamic quality of frequency measurement and expedites the responding speed effectively
首次提出了一種由整形電路和可編程計算機控制器配以適當軟體完成頻率測量的方法，有效地解決了plc調速器測頻環節存在的可靠性差及響應速度慢的問題，提高了頻率測量的可靠性及動態品質。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。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。With the quick development of electronic technology, high - stability crystal oscillator is being used more and more widely. especially, temperature - compensated crystal oscillator ( tcxo ) is commonly used in electronic equipments such as communication, navigation, radar, measure instruments etc.
隨著電子技術的飛速發展，頻率高度穩定的晶體振蕩器得到了廣泛的應用，特別是溫度補償晶體振蕩器（ tcxo ）更是廣泛應用於通信、導航、雷達、測量儀表等電子設備中。Testing of paper and board - determination of the bending stiffness - part 1 : length of natural frequency method
紙和紙板的試驗.測定抗彎剛度.第1部分:固有頻率長度Furthermore, analyzing the characteristics of the ultrasonic motor in the resonant state. on the basis of theoretical research, an experimentation is made, by which we analyse the disadvantages impacting the work of traveling wave and test the relationship among pressing force, speed and pull. the results of the experimentation validate the correctness and reliability of theoretical analysis
在理論分析的基礎上，對設計的超聲波馬達進行了實驗分析與測試，分析了影響馬達運轉的不利因素，測試了超聲波馬達不同預壓力下速度與力矩以及馬達空載時速度與頻率、速度與電壓之間的關系，驗證了理論分析結果的正確性和可靠性。The module is composed of the vxibus interface, data acquisition and storage circuit, analog conditioning circuit and trigger control circuit. measurements such as period, frequency, voltage, pulse width are supported by the acquisition and storage of the input signals
該模塊主要由vxi介面電路，數據採集及存儲電路，信號調理電路和觸發控制電路等各部分組成，可以完成信號的採集、存儲，支持信號的周期，頻率，幅度，脈寬等參數的測量。Accuracy of frequency estimation is the kernel of doppler log performance. bandpass sampling fft method, which is suitable for deep water doppler log, is present. accuracy of this method is desirable according to simulation results
在參考借鑒大量頻率測量方法的基礎上，提出了適用於大深度多普勒計程儀的頻率估計演算法-帶通采樣fft法，並進行了模擬計算，其精度令人滿意。The result show the resolution of temperature measured by dither frequency is very high
由於測量抖動頻率的精度較高，故由抖動頻率測量溫度具有很高的解析度。Test method for frequency temperature stability of piezoelectric ceramic vibrator
壓電陶瓷振子頻率溫度穩定性的測試方法分享友人