specific voltage 中文意思是什麼
specific voltage
解釋
比電壓-
Li - ion batteries are widely used for their favorable advantages of high voltage, big specific capacity, long cycling life and non - pollution
鋰離子電池以其高電壓、比能量大、循環壽命長，無污染等優點而得到廣泛的應用。 -
Conventional resonant tunnel diodes allow currents to flow at a specific voltage, one at which the electrons have an energy that is resonant with the tunneling barrier
傳統共振穿隧二極體在特定電位下可讓電流通過，此時電子的能量共振于（即等於）穿隧位障。 -
This paper mainly focuses on the noise limiting by means of the direct sequence spread spectrum ( dsss ) and the analysis of the transmission performance of the plc and some digital modulation technology. the contents of the paper is as follows : 1 ) the technical feasibility is proved after simulating noise limiting principle of dsss by means of systemview, the simulation software ; 2 ) a kind of band pass filter ( bpf ) is realized according to the requirement of filter and the principle of butterworth approximation, which satisfies the index of performance of dsss. 3 ) the low voltage plc system includes the sc1128, the specific modulation / demodulation ic, the bpf filter and other circuit components, furthermore, the control function of system is realized by means of the personal computer and the microcontroller
本課題在對低壓電力線的傳輸特性和數字調制技術進行分析的基礎上，將通信理論中的直接序列擴頻技術（ dsss ）用於解決低壓電力線通信的干擾問題，主要研究內容如下： （ 1 ）用通信模擬軟體systemview對dsss技術的通信和抗干擾原理進行模擬分析，分別對時域和頻域下採用dsss技術前後接收信號的頻譜進行分析，驗證dsss技術在本系統中的可行性； （ 2 ）由dsss技術對濾波系統的要求，根據濾波理論分析了巴特沃思型濾波器的逼近原理並設計了合適的濾波電路； （ 3 ）用調制解調晶元sc1128和自行設計的濾波器加之輔助外圍電路，構造出低壓電力線載波通信系統，並採用atmel公司的單片機設計了接收和發射電路的微控制器； （ 4 ）分別對採取抗干擾措施前後輸入和輸出信號進行對比實驗，並對結果進行分析，驗證了dsss技術對干擾信號的抑制作用。 -
The study has completed the design of two - phase inverter and made up of the two - phase inverter - motor system for experimental use it is a variable frequency adjustable speed system with a open - loop control of rotational speed, which consists of voltage - controlled oscillator circulating assign device inverter circuit and two - phase induction motor a accurate mathematical model is set based on the whole system, and simulator program of dynamic and steady condition is established, which is used to calculate the dynamic and steady performance by kron and symmetrical coordinate converter by simulator calculation and experimental research with specific parameter of the system, a comparison is made between predicted and experimental characteristics, experimental measurements are shown to compare closely with corresponding theoretical result it is compared with some variable frequency adjus table speed system comprising inverter and single - phase induction motor from the system efficiency torque pulsation and the effect of two - phase inverter capacitance based on the conclusion, harmonic cancellation pulse width modulation control of a two - phase inverter - fed induction - motor drive system is researched, which cancelled the low harmonic and improve the system performance
通過對電機的kron變換和對稱分量變換，建立了系統較精確的數學模型，編制了系統動態及穩態運行的模擬計算程序分別計算系統的動態和穩態性能。通過對系統的具體參數進行了模擬運算和實驗研究，實驗和模擬結果進行比較，說明實驗和理論較為一致，並從系統效率、轉矩脈動及兩相逆變器電容的影響等方面與各種逆變器和單相異步電動機組成的變頻調速系統加以比較。在此基礎上，對兩相逆變器供電-異步電動機系統使用諧波抑制pwm控制進行了研究，由於減少了低次諧波，改善了系統性能。 -
Slowly - drop gate voltage and softly turn - off principles are explained in this article, specific parameters are also listed
摘要闡述了軟降柵壓和軟關斷的過電流保護原理，列出具體的保護時序參數。 -
These three products are specialized diodes designed for specific purposes and their names give an indication of their use ? however these are diodes which serve to protect the circuit from transient or sudden ( surge ) voltage changes or for constant current diodes, to keep the current constant
此三種產品是專門用來（名稱已經表明其用途）保護電路不受瞬變電壓、急始（浪涌）電壓變化的影響，或保持恆定電流二極體的電流穩定。 -
Much works has been distributed to the development of a vacuum system to simulate the outer space and a measurement system to test the arcjet performance. ignition experiments in various operational modes have been done with argon as propellant. macroscopical working parameters including thrust, mass flow rate, voltage, current, inlet pressure and vacuity are obtained by the test measurement system and actual performance parameters including specific impulse, thrust efficiency, ratio of thrust and power and ratio of power and mass flow are calculated
以氬氣作為推進劑，在不同工況下進行點火實驗，測量獲得了其工作推力、電弧電壓和電流、推進劑流率和弧室壓力等宏觀參數，得到了不同實驗條件下其工作的實際比沖、推力效率、推力/功率比以及比功率等性能參數，分析了推進劑質量流率、電弧功率、電弧加熱發動機電弧室結構尺寸等因素對其性能的影響，為數值模擬研究和實際的低功率電弧加熱發動機優化設計及研製提供了實驗基礎。 -
According to recording data of higher level monitor and control system when main motor drive system for four - high medium plate mill is operated, and relation between armature voltage of dc electromotor and ac input voltage of inverter, trip cause of dc fast automatic switch was analyzed in detail, and specific countermeasure and measures are given
根據中板四輥軋機主電機傳動系統運行時的上級監控系統記錄數據，以及直流電機電樞電壓與變流器交流側輸人電壓的關系，詳盡地分析了直流快速自動開關跳閘故障原因，並提出具體的對策及措施。 -
Railway applications - fixed installations - d. c. switchgear - measurement, control and protection devices for specific use in d. c. traction systems - isolating voltage transducers and other voltage measuring devices
鐵路設施.固定設備.直流開關裝置.直流牽引系統專用測量控制和保護設備.絕緣電壓傳感器和其他電壓測量設備 -
Raised the idea of constructing hybrid capacitor with a battery based positive electrode and a capacitor based negative electrode, experiment proved that a hybrid supercapacitor with a manganese dioxide based positive electrode and an activated carbon based negative electrode showed very good performance, double electrode specific capacitance could be enhanced to 95. 7f / g, that is 2 ~ 3 times that of the carbon based supercapacitors. furthermore, the maximal voltage of a single cell could be expanded to 1. 5v, as a result, the energy density could be ten times higher than that of a carbon based supercapacitors
本論文中我們提出了將電池哈爾濱工程大學碩士學位論文的正極與電容器的負極結合成混合超級電容器的構想，並成功實現了二氧化錳正極和活性炭負極的組合，構成的錳碳混合超級電容器雙電極比容量可達到95 . 7f / g ，比活性炭超級電容器提高了2一3倍，單體工作電壓可以高達1 . 5v ，從而使能量密度提高到碳基超級電容器的十倍。 -
The investigation and developing of lithium - ion batteries have attracted worldwide attention due to their excellent properties such as high cell voltage and specific capacity, and so on. remarking progress has been made on researching carbon anode materials
鋰離子電池以電壓高、比容量大等優點倍受世人關注，對鋰離子電池的碳負極材料的研究已取得較大的進展，但正極材料中因鋰鈷氧化物價高而使其應用受到限制，開發新型的正極材料已是當務之急。 -
In lately 20 years, many new structures and technologies have been developed. however, the tradeoff of breakdown voltage with specific on - resistance is always being researched. this thesis was supported by the key program of national natural science foundation of china
近二十年來，眾多學者提出了很多種器件結構和技術，為soi高壓器件的發展做出了貢獻，但是soi的耐壓和導通電阻的折衷問題一直是無法忽略的。 -
The auxiliary products for auto electric appliances include : application - specific integrated circuit for auto and motorcycle flashers, application - specific integrated circuit for wiper intermittent relays, transistors for auto acoustics, power darlington transistors for auto generator voltage regulators, power darlington transistors for auto ignition systems, high frequency transistors for auto remote controllers, regular parts for auto electric appliances, chips of semi conductor etc
產品有：汽車和摩托車閃光器專用集成電路，汽車雨刮間歇繼電器專用集成電路，汽車電壓調節器用功率達林頓管，汽車點火器系統用功率達林頓管，汽車遙控器用高頻管，半導體晶元等。 -
Nano - sacle coo is apt to dissolve in the electrode homogeneously, and better conductive net of coooh come into being, thus contribute a lot to the procedure of the activation. the electrode with nano - scale coo and cnts shows higher discharge voltage and higher discharge capacity. nano - scale additives can improve the specific capacity of the electrode, the volume specific capacity and the mass specific capacity of the electrode with nano - scale coo are 784mah / cm3 and 224mah / g, respectively
結果表明：添加劑為納米coo的電極的活化性能最好，納米coo相對于普通coo能更加均勻的分佈在鎳電極內，也更易溶解、反應生成coooh導電網路，從而加快了鎳電極的活化進程；添迦納米coo和添加cnts的極片具有較高的放電電位和較大的放電容量，納米添加劑能有效提高鎳正極活性物質的放電效率和利用率；納米添加劑可以有效地提高鎳正極片的容量密度，其中添迦納米coo的極片體積容量密度達到784mah cm ~ 3 ，質量容量密度達到224mah g ；添加cnts的極片體積容量密度達到778mah cm ~ 3 ，質量容量密度達到223mah g 。 -
Specific issues examined are : compensation for the variation of the stator resistance, the offset error of the dc bus voltage, the voltage error generated by the forward voltage drop the dead time of the switches, improvement of the steady state performance, and the speed sensorless control for the pmsm dtc drive system are of major concern in this thesis
定子電阻變化，直流母線電壓漂移，開關器件反向相電壓降、逆變器死區時間引起的電壓誤差的補償，提高系統穩態運行性能以及永磁同步電機直接轉矩控制的無速度傳感器運行方案等問題都是本文研究的重點。轉矩的快速響應是直接轉矩控制演算法的一個卓越的性能。 -
Research and development of new type high voltage electrical equipment, development of specific high voltage electrical equipment for series compensation and short - circuit current limiters
新型高壓電器及串補、短路電流限制器等專用高壓設備的研究。 -
The optical switch with double - heterostructure gaas / gaalas has low switching - voltage and light loss. and the boa - type optical switch utilizes maximum modal dispersion ( a p ), does not require a specific fabrication length or length range to operate, has simple structure, and can exhibit very high extinction - ration from its two output ports ; so it is suitable for a 2 x 2 unit of optical switch array
而boa型結構（或稱為零間隙定向耦合型）光開關利用了最大的模色散（ ） ，不需要嚴格控制特殊的製造長度或製造范圍，結構簡單，從其兩個輸出端可以得到很高的消光比，是一種很好的2 2波導型光開關單元，同時也是光開關陣列的一種較好的選擇。 -
Inductive voltage dividers ( ivd s ) will be calibrated by comparison with the laboratory s 8 - dial ivd, normally at specific frequencies of 400 hz, 1 khz and 10 khz with an input test voltage of 25 v. the calibration normally involve measurement of voltage ratio ( magnitude ) of the output voltage related to the input voltage of the ivd
感應分壓器一般按400hz 、 1khz及10khz等指定頻率及25v的輸入測試電壓，透過與本所的八刻盤感應分壓器對比而進行校正。校正工作一般包括測量該感應分壓器輸入電壓與相對輸出電壓的電壓比（幅值） 。 -
Considering the practicality in specific design, the two different drive system has been designed in the electrical control system, this is, the hoist and gantry uses a set of the ac ( alternating current ) frequency conversion timing drive system, the trolley and boom uses a set of the dc ( direct current ) adjusting voltage and timing system
在具體設計時考慮到實用性，設計的電氣控制系統中採用了兩類不同的驅動系統，即起升與大車共用一套交流變頻調速驅動系統，小車與臂架俯仰共用一套直流調壓調速驅動系統。 -
Considering the practicality in specific design, two different drive systems are designed in the electrical control system, that is, the hoist and gantry share a set of alternating current frequency conversion timing driving system, and the trolley and boom share a set of direct current adjusting voltage and timing system
考慮到實用性，設計的電氣控制系統採用兩類不同的驅動系統，即起升與大車共用1套交流變頻調速驅動系統，小車與臂架俯仰共用1套直流調壓調速驅動系統。
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