voltage phase 中文意思是什麼

voltage phase 解釋
電壓相位
  • voltage : n. 【電學】電壓，電壓量，伏特數。 the working voltage （電氣的）耐壓限度。
  • phase : n 1 形勢，局面，狀態；階級。2 方面，側面。3 【天文學】（月等的）變相，盈虧；【物、天】相，周相，...
  1. The research of new type 1okv high - voltage phase comparator

    高電壓相位測量儀
  2. Tensile properties and impact properties measurements were done at room temperature. the volume resistivity of rectangular samples was measured using a zc36 electrometer and a high 240a voltage supply, for samples with a low resistivity level a dt - 9205b digital multimeter was used, silver paint was applied to ensure complete contact between sample and electrodes, namely, to eliminate the contact resistance. the phase morphology of blends was also studied using a jeol jsm - 5900lv scanning electron microscope ( sem )

    體積電阻率的測定：當r _ v 10 ~ 8時，製成100 100 4mm板材，用zc36型高阻儀測量；當r _ v 10 ~ 8時，用dt - 9205b型數字式萬用表測試試樣的體積電阻，為了減小接觸電阻對測試的影響，採用銀導電膠將銅片粘接在試樣的兩個端面上，靜置24小時，待銀導電膠凝固，試謝長瓊:熱拉仲對pet / pe / cb復合導電體系形態和性能的影響樣的電阻穩定后再測量。
  3. Monitor apparatus can measure valid value of three phase voltage and current, power factor, three phase disequilibrium, instant flecker of short time and harmonic without twenty, degree and harmonic distortion total. the paper are laid on the following. ( 1 ) master plan and function of circuit, ( 2 ) hardware design including circuit and principle of a / d conversion, phase lock, liquid crystal display and keystroke and so on, ( 3 ) design of system software including digital filtering, fft, a / d conversion and monitor interface of pc, ( 4 ) system test

    監測儀能夠完成包括三相電壓、三相電流的有效值、功率因數、三相不平衡、電壓短期閃變、以及20次內的諧波、諧波相位、諧波失真總量等的測量。論文重點介紹了以下幾部分： （ 1 ）電路的總體設計和功能； （ 2 ）硬體設計，包括a d轉換、鎖相環、液晶顯示和按鍵輸入等原理和電路。 （ 3 ）系統軟體設計，包括a d轉換、 fft 、數字濾波等程序的原理和演算法以及上位機監控界面的設計； （ 4 ）系統測試。
  4. The pll consists of a crystal oscillator, a ring voltage - control - oscillator, a frequency divider, a phase / frequency detector, a charge pump and a loop filter

    設計的電路包括20mhz晶體振蕩器，鑒頻鑒相器，壓控振蕩器，固定分頻器，電荷泵和低通濾波器。
  5. The theories and design principles of each circuit of the spwm three - phase frequency inverter experiment unit are in detail introduced in this thesis. at the same time some experiment results are shown that include the output voltage and current waves when the load is in resistivity, inductivity or asynchronous motor

    文中詳細介紹了spwm三相變頻實驗單元所包含的各電路環節的理論基礎及設計過程，並給出了調試結果，如負載為阻性、感性和異步電動機時，實驗單元輸出的電壓和電流波形。
  6. Abstract : in fourier transform profilometry, because of the nonlinear relationship between the irradiant incident upon a ccd dete ctor andthe voltage it outputs, it will cause phase evaluation errors. here, we ex plain the errorsource by theoretical deducing, then make a simulation. at last, a method to decrease thiserror is put forward

    文摘:在傅里葉變換輪廓術中，由於ccd探測器光電響應的非線性，將在測量中引入高次項，從而對相位的求解造成較大誤差，通過理論的推導定性地解釋了誤差的來由，並用計算機進行了模擬計算，最後提出了減小誤差的方法。
  7. Intelligent electricity quantity concentration display instrument is a kind of intelligent instrument used to measure combined parameter of ac electricity quantity, which can simultaneously measure each phase electricity parameter in the tri - phase ac loop such as voltage, current, active power, reactive power, apparent power, power factor, frequency, active kilowatt hour, reactive kilovolt ampere - hour and so on

    智能電量集中顯示儀是一種用於交流電量綜合參數測量的智能儀表，它可以同時測量三相交流迴路的每一相電壓電流有功功率無功功率視在功率功率因數頻率有功電度無功電度等參數。
  8. A novel phase - shifted zero - voltage and zero - current switching pwm dc / dc full - bridge converter is presented in this thesis, which is based on the groundwork of summarization of the development of power electronics in recent years and lucubration in theoretical basis of modern high frequency soft switching power convert technique and analysis of operation principle, characteristic of the circuit and inherent drawbacks of the traditional phase - shifted zero - voltage switching pwm dc / dc full - bridge converter

    本文在對近年來電力電子學科的發展高度綜述和對現代高頻軟開關功率變換技術理論基礎深入研究的基礎上，對傳統的移相控制zvspwmdc dc全橋變換器的工作原理、電路特性、存在的缺點進行了分析，在此基礎上提出了一種改進型的移相控制zvzcspwmdc dc全橋變換器。
  9. Dds951 series electronic single - phase electric meter is the most advanced static electronic meter in china. the meter designs use large - scale intergated circuit. high reliability step motor, it can the ac single - phase active energv voltage rating : 220v : frequency 50hz, positive and negative two directions and accumulates in one direction. the test singnal is isolated by phototransistor : it also has the function of anti - fraud, and indicates it s operation situation on flash light, so it could be managed very easy

    Dds951單相電子電能表，是金雀儀表公司開發的新型電度表。該產品是採用規模專用集成電路，高可靠性步進電機等先進技術製造的國內最新電能試題新產品，用來計量額定電壓為220v ，頻率為50hz的交流單相有功電能，該產品能夠精確計量正負兩方向的有功電能，且以同一個方向累計。
  10. The algorithm of svpwm that is adopted by the system implements motor speed - regulation by control of magnitude and phase of motor flux. it can generate less harmonics in the output current of power inverter and less losses of ac motor, reduce pulsant component in output torque and raise availability of dc supply voltage

    系統採用的svpwm演算法通過對空間磁鏈矢量幅值和相位的控制來調節電機轉速，減少了逆變器輸出電流的諧波，降低了脈動轉矩，提高了電壓的利用率。
  11. Then novel circuit structure of bi - directional voltage mode ( based on forward converter ) inverters with high frequency link, are proposed, which is constituted of input cycloconverter, high frequency transformer, output cycloconverter, input and output filter ; the circuit topologies family of this bi - directional voltage mode inverters with high frequency link include six circuit topologies, such as push pull - full wave mode, push pull - full bridge mode, half bridge - full wave mode, half bridge - full bridge mode, full bridge - full wave mode, and full bridge - full bridge mode etc. taking full bridge - full bridge mode circuit as an example, principle of uni - polarity phase shifting controlled bi - directional voltage mode inverters with high frequency link is introduced

    本文首先論述了dc / ac逆變技術的應用前景及發展現狀。基於正激forward變換器的雙向電壓源型高頻環節逆變器電路結構，由輸入周波變換器、高頻變壓器、輸出周波變換器、以及輸入、輸出濾波器構成;雙向電壓源高頻環節逆變器電路拓撲族，包括推挽全波式、推挽橋式、半橋全波式、半橋橋式、全橋全波式、全橋橋式六種電路。
  12. Being added an anti - phase compensating winding, this device, which is placed between high voltage line and first insulator, makes the synthesized magnetic field in magnetic core reach a dynamic balance, and thus solves the problems from remanence and assures the measurement accuracy

    其漏電流傳感器增加一個反相的補償線圈，使得電流傳感器磁芯內的合成磁場達到動態平衡，解決了由於剩磁而帶來的問題，保證了測量精度。
  13. The electrode is driven by elliptical movement and its direction is controlled by t wo voltage phase - difference

    為實現電火花電極的微米級步距，設計了橢圓微驅動電路，並能有效地控制電極的運動方向。
  14. Voltage phase - balance protection

    相電壓平衡保
  15. Most of the traditional real - time detecting method for harmonic current is based on sinusoidal voltage or locking the voltage phase accurately, which deviating from the real circumstances

    由於傳統的諧波電流實時檢測方法大都是基於正弦的電壓系統或對于電壓波形達到精確鎖相的前提，而現實情況卻往往不是如此。
  16. By the means of theory, simulation and experiment, the second part of this paper is then analyzed which is on the equivalent output resistance and inductance of the selected inverter and the effect to the output voltage ' s amplitude and phase caused by the different values of the inverter ' s component. it is concluded that by selecting certain precision level components, the difference of the output voltage amplitude is much greater than that of the output voltage phase

    其次通過理論、模擬和實驗分析了本文所採用的電壓電流雙閉環瞬時控制方式逆變器的等效輸出阻抗和兩臺逆變器器件差異對輸出電壓的幅值差和相位差的影響，從而得出選用一定精度的器件，兩臺逆變器輸出電壓的幅值差比相位差大得多的結論。
  17. New fet - input amplifiers, like the ad820 family of amplifiers, incorporate design improvements that prevent output voltage phase reversal for signals within the rated supply voltage range

    新型的fet輸入管放大器（如ad820系列放大器） ，在設計上做了改善，對于額定電源電壓范圍之內的信號，能夠防止輸出電壓相位反轉。
  18. This paper mainly studies the coupling error caused by induction voltage phase difference, and fluctuation of directional sensitivity caused by changes in near - field difference slope. the trend of system sum and difference phase difference, directional sensitivity and cross - coupling with change in distance is compared and discussed when the antenna is in the near - field and at a certain elevation

    本文著重研究了因近場感應電壓相位差引起的耦合誤差，以及近場天線差斜率變化引起的定向靈敏度的變化；討論了天線在近場並有一定仰角的條件下，隨著距離的變化，系統和、差相位差、定向靈敏度與交叉耦合的變化趨勢。
  19. How the parallel inverters share the output power is analyzed and a completely different conclusion is got that the output active power ' s difference and passive power ' s difference of two parallel inverters are relative to both the output voltage amplitude ' s difference and output voltage phase ' s difference of the two parallel inverters

    接著對並聯逆變器的功率均分進行了建模分析、模擬分析和實驗驗證，得出一個同以往不同的結論：兩臺逆變器輸出的有功功率差和無功功率差與輸出電壓的相位差和幅值差都有關系。
  20. Verify ac line voltage, phase and frequency with the controller data plate on the enclosure door prior to connecting ac power

    在連接交流電源之前，請驗證交流電壓、相位和頻率是否與控制裝置外殼門參數板上的相應數據相同。
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