頻率調整精度 的英文怎麼說
中文拼音 [bīnlǜdiàozhěngjīngdù]
頻率調整精度
英文
accuracy of frequency adjustment- 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
- 調 : Ⅰ動詞1 (配合得均勻合適) harmonize; suit well; fit in perfectly 2 (使配合得均勻合適) mix; adju...
- 整 : Ⅰ形容詞1 (全部在內; 完整) whole; all; complete 2 (整齊) neat; tidy; orderly Ⅱ動詞1 (整理; 整...
- 精 : Ⅰ形容詞1 (經過提煉或挑選的) refined; picked; choice 2 (完美;最好) perfect; excellent 3 (細)...
- 度 : 度動詞[書面語] (推測; 估計) surmise; estimate
- 頻率 : frequency; rate
- 調整 : adjust; tune up; trim; trimming; variation; modulation; arrangement; debug; rectification; redres...
- 精度 : precision; accuracy; degree of accuracy; precision accuracy; trueness
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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。In case of absence of a precision external reference, the ocxo frequency adjustment is carried out by means of the p1 potentiometer
萬一一個精密度的外部參數預設, ocxo頻率調整依靠p1電位計來實行。In dafrm, for the purpose of providing better system performance and reducing network traffic, system nodes scan their local replicas to monitor replicas ’ access situation, and make decision independently to add, delete or migrate their replicas
Dafrm可以根據文件讀寫訪問頻率,自動調整文件副本數量以及副本的存放位置,平衡讀寫操作對副本的不同要求,並對每個副本實現不同精度的差異化管理。The results show that wavelength locates in gain zone of semiconductor optical amplifier, and have higher peak power and proper time delay between the two pulses for the second order super gauss control pulse in semiconductor optical amplifier. a high quality amplified signal pulse can be achieved. the chirp can be reduced notability by using cascading soa in cross gain modulation based on soa, and the distance and the peak power of conversion optical pulse can be increased notability, and we can let down the demand for wavelength based on xgm in soa and enhance the flexibility of wavelength conversion
我們應用二階超高斯光脈沖與高斯信號脈沖同時注入soa和應用soa與非線性光學環鏡( nolm )相結合的方案來對信號脈沖進行壓縮整形,模擬顯示,在調節系統合適參數的情況下,波長位於soa增益區的二階超高斯控制光脈沖在具有較高的峰值功率和適當時延下輸入soa時,最後可以得到放大的高質量超簡訊號光脈沖;在基於soa的交叉增益調制( xgm )全光波長轉換中,採用級聯的soa能有效地使反轉光脈沖的頻率啁啾得到有效降低,波長向下轉換的距離和反轉光的峰值能量都得到明顯提高,降低了利用交叉增益調制( xgm )波長轉換中對波長精度的要求,從而提高了波長轉換的靈和性。By using the operation circuit, the drive voltage of f - p in feedback can automatic trace the reflected fbg wavelength. not only had an extraordinary wide demodulation range of frequency achieved, but also a problem solved that when the sensing probe is changed, the sensor has the ability to automatic adjust the drive voltage of f - p to keep up with the dramatic change of the reflected fbg wavelength
本文中創新性地提出了「自動跟蹤」的概念,利用光電系統中的運算電路,不僅能夠自動跟蹤調整法布里腔的驅動電壓、在保證精確度的同時有效地提高該傳感系統的解調頻率范圍,還有效地解決了在測量范圍內有時需要更換傳感探頭的重新調諧問題。In the fifth chapter, the performance of transconductor - capacitor ( gm - c ) continuous time filter is discussed. due to process variation and parasitics, an automatic tuning is designed for center frequency and quality factor q. also, in this chapter, a two order bandpass filter with tunable is designed. the effects on filter ' s performance of the non - idealities of a cmos ota are studied and the computer simulations at the mos transistor level are carried out
第五章討論了跨導電容連續時間濾波器的性能特點,設計了一個中心頻率可調的二階帶通濾波器,為了使濾波器參數自動調整到設計標準值,從而保持其設計值的實現精度,論文給出了片內自校正(可調諧)環節。The system reached control goal by experimental verification and the experimental results showed the system could produce ac excitation voltage with low harmonic, quick adjusting speed, wide adjusting range and high control precision of frequency
整個系統通過全面的實驗驗證,實驗結果充分說明所設計的系統產生出低諧波、調節速度快、調節范圍寬和頻率控制精度高的交流勵磁電壓,達到了預期的目標。Dd862 and dd862a single phase electic meter are in duction meter. it is used in calculating 50hz single - phase ac active electrical energy. it is compaosed of electromagnetic element. moving disc, bearing, damping magnet steel, counter and regulator and regulator equipment. the meter has high precision, high over - load, long lifetime and so on features
: dd862型和dd862a型單相電度表是感應式儀表,用於計量器頻率為50hz的單相交流有功電能。它主要由電磁元件轉動圓盤軸承阻尼磁鋼計度器和調整裝置等組成,本表具有高精度高過載長壽命等特點。The automatic tracking of sampling frequency to fundmental frequency is realized by adaptive sampling in order to improve the accuracy of measurement
採用自適應調整采樣間隔技術實現頻率跟蹤,提高了測量精度。分享友人