voltage and frequency response 中文意思是什麼
voltage and frequency response
解釋
電壓及頻率響應-
Schottky barrier diode is a kind of majority carrier device, using the contact barrier formed between metal and semiconductor to work. it has the advantages of low turn - on voltage and high response frequency, compared with pn junction diodes
肖特基二極體是利用金屬與半導體之間接觸勢壘進行工作的一種多數載流子器件，與普通的pn結二極體相比，它具有正向導通電壓低，響應速度快等優良特性。 -
In the end, the main content of this dissertation is addressed. in chapter 2, based on the analysis of present vibrator ' s principle and structure, two kinds of transfer functions and frequency response curves of the vibrator, driven by voltage feedback power amplifier and current feedback amplifier, are given separately. and turnover frequencies between different frequency rangs are also given
第二章分析了標準振動臺的工作原理和結構，在此基礎上，建立了標準振動臺的機械和電氣方程，給出了恆壓源和恆流源功放激勵下的振動臺傳遞函數及幅頻、相頻特性曲線，列出了不同頻段間的轉折頻率。 -
Smart materials and structure have definite requirements of sensor components and driving components, for example, they can adhere well to the matrix and have higher strength, fatigue strength, more broad scope of frequency response and faster response speed, etc. piezodielectric ceramics have characteristic of easily preparing, heat - resistance, wet - resistance, high strength and broad scope of frequency response, etc. furthermore, it has piezoelectric effect and inverse piezoelectric effect, namely it can produce electric potential energy when it is transformed by mechanical strength and its mechanical dimension can be transformed when voltage is put on it
壓電陶瓷能與基體材料很好結合，具有制備容易、耐熱、耐濕、強度高、頻響寬等特點，另外它具有正壓電效應和逆壓電效應，即當它受到機械力變形時，能產生電勢，對它施加電壓時，能改變其機械尺寸，因此它在智能材料結構中既能用作傳感元件又能用作驅動元件。 -
The feedback of the output voltage is the major control loop. to achieve better frequency response and disturbance rejection of the input voltage, a input voltage feed - forward system is introduced in control loop. the duty - cycle of pwm applied at the gate of power mosfet is modulated by both input and output voltage
該晶元採用的控制方式為電壓型pwm （脈沖寬度調制， pulsewidthmodulation ）控制方式，以輸出電壓反饋作為主要控制參量，同時為了提高晶元對輸入電壓擾動的響應速度，採用了輸入電壓前饋方法，將輸入電壓因素引入了反饋控制環中，通過對輸入輸出電壓的檢測，控制加在功率mos管柵極電壓上矩形脈沖的占空比，進而調節輸出電壓。 -
This product, adopted pwm integrated circuit and mosfet, igbt that were imported from the overseas, has the following merits : quick - response, strong interfere - proof, stable frequency and voltage, low consumption when light loading, high efficiency and reliable performance, it can be applicable to the family use, pasture region, work with the wind generator and some other places where the power failure often occurs
本品採用pwm （脈寬調制）集成電路和進口大功率mosfet 、 igbt等器件，具有應變快、抗干擾、自動穩定頻率和電壓、空載損耗低、效率高、性能可靠，是家庭，牧區，風力發電機配套以及其它野外經常停電地區提供交流電的必備的電器。 -
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。 -
Experimental results validated that this high performance arc igniting device developed provides with fast response and stable high frequency output voltage
試驗表明該開關式高頻振蕩引弧器控制系統具有頻響快、輸出高頻高壓穩定的特點，是一種性能較好的開關式高頻振蕩引弧器。 -
In this paper, a new control strategy based on the adaptive deadbeat voltage space vector is presented. this control scheme has a lower sample frequency and a smaller difference between switch frequency and sample frequency. it has many advantages, such as producing zero vectors organically, tracing exactly, non - shaking, etc. and its dynamic response is better
對于電能質量調節器來講， pwm跟隨指令參考信號的控制性能在很大程度上影響著裝置的補償效果，本文選擇無差拍電壓空間矢量控制為系統控制策略，這種控制方法具有采樣頻率低，開關頻率與采樣頻率的差距小，能有機地產主零矢量、跟蹤精確以及無抖振等優點，動態響應快。 -
The low voltage impulse method, frequency response analysis method and short - circuit reactance method, which can be used to measure and diagnose the deformation of power transformer winding, are introduced in the paper
目前，監測變壓器繞組變形的方法主要有低壓脈沖分析法（ lvi ） ，頻率響應分析法（ fra ）和阻抗分析法。這些方法都需使變壓器退出運行，在變壓器離線情況下對變壓器繞組變形進行測量的。 -
By analyzing and rat testing on the current negative feedback, the voltage negative feedback and the electricity - powered loudspeaker, this paper shows that the current negative feedback can decrease the distortion of the loudspeaker, makes the frequency - response plot more smooth and improves the audio quality greatly
摘要本文通過對電流負反饋和電壓負反饋兩種電路與電動式揚聲器構成的系統進行對比分析，並進行實時分析測試，證實了電流負反饋對電動式揚聲器失真能從實質上得到改善，從而使頻響曲線更加平滑，音響系統的性能明顯提高。 -
Through the monitoring on the frequency performance and square - wave response performance of manganese - zinc ferrite coil with different sizes., different ratios of winding and different matching impedances, the result shows that manganese - zinc ferrite coil with proper ratio of winding and matching impedance can effectively restrain the interference and damage which the over - voltage and large - current signals of the power system do to the on - line monitoring system
通過對不同尺寸、不同匝數比和不同匹配阻抗下的錳鋅鐵氧體線圈的頻帶性能、方波響應性能測試實驗，結果表明：適當匝數比和匹配阻抗的錳鋅鐵氧體線圈可以有效地抑制系統過電壓和大電流信號對在線監測系統干擾和破壞。 -
Voltage and frequency response
電壓及頻率響應 -
The factors that affect the frequency response of a capacitive divider were studied carefully. a coaxial voltage capacitive divider with an umbrella probe and a low - voltage circuit was presented. experiments shown that the frequency response of our probe is better than others of such dividers
本文分析了影響電容分壓器響應的因素，探討了傘式探針的性能，設計了以傘式探針為基本結構的同軸電容分壓器，提出了測量不同信號的兩種i 。
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