alternating-current system 中文意思是什麼
alternating-current system
解釋
交流系統-
This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions
首先對加速度計及其測試技術的發展歷史和現狀，液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹，然後確定了以二元調寬脈沖再平衡測試迴路為設計方案，並從控制理論的角度進行了分析，著重研究了系統中各部分的傳遞函數，利用系統開環傳遞函數分析了系統的穩定性，同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題，並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路，驗證了電路的正確性，最後按照測試系統的要求，採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具，利用該圖形化編程語言完成了測試系統軟體部分的設計，實現了測試功能。 -
Everyone knew that tesla ? the man who had devised the alternating - current ( ac ) system that brought electricity into people ' s homes and businesses ? was a master showman
每個人都知道，特士拉這位設計出交流電（ ac ）系統、把電力帶入人們家庭與工作的人，是一位表演大師。 -
Study on early hydration in system of cement - coal stone by alternating current impedance spectroscopy
水泥體系早期水化的交流阻抗研究 -
Railway applications - rolling stock - combined testing of alternating current motors, fed by an indirect convertor, and their control system
鐵路設施.鐵路車輛.由間接變流器饋電的交流電動機及其控制系統的聯合檢驗 -
Railway applications - rolling stock - part 3 : combined testing of alternating current motors, fed by an indirect convertor, and their control system
鐵路設施.鐵路車輛.第3部分:交流電動機，間接變流器及其他控制系統的聯合檢驗 -
In this paper the research object is new model alternating current servo system. according to the request that was the static state - dynamic state precision and the celerity of response brought forward by task book, aimed at the bad circs of large inertia variety load and the sway of launch flat, we made deep research
本文以新型交流伺服系統作為研究對象，依據設計任務書所提出的靜態、動態精度和響應快的要求，針對大慣量、變負載和力矩干擾等惡劣情況之下的伺服控制問題進行了深入研究。 -
The paper analyzes the drawbacks of traditional auction system based on mas and the trend of electronics auction, and deeply studys current auction system. combined with cooperation games theories, this paper gives the rules of alternating double auction, brings up the cooperation model cm and agent based on cooperation games, and uses the bdi model to build agent, and gives the bdi logical of mean and reason logically. at last, this paper establishes alternating double auction platform and researches agent ' s cooperating auction on this background
分析了傳統的基於mas拍賣系統的不足以及當前電子拍賣的發展趨勢，深入研究了當前拍賣系統，結合合作博弈理論，給出互動式雙邊拍賣平臺的拍賣規則，提出互動式雙邊拍賣平臺的合作模型cm和基於合作博弈的agent ，並使用bdi模型建立基於合作博弈的agent ，給出agent的bdi邏輯表示以及推理，並建立互動式雙邊拍賣測試平臺，在該平臺下進行多agent合作拍賣的研究。 -
When switching the no - load overhead lines by alternating - current high - voltage circuit breaker which is a kind of daily operations in electric power system, over - voltage is probably bringed out and insulating property of the electric devices is breakdowned sometimes, especially, when occuring re - strike. the main purposes that the tests on switching line - charging current are performed in the laboratory are assessing re - strike performance of circuit - breakers. according to the test results, the design of the circuit - breaker is optimized and re - strike performance is improved
交流高壓斷路器是電力系統中最關鍵最重要的設備之一，斷路器開合空載架空線路是電力系統中常見的操作，操作過程中通常會出現過電壓，對系統絕緣造成威脅，嚴重時會破壞系統的絕緣性能，發生事故，隨著電力系統電壓等級的提高、輸電線路不斷延長及傳輸容量的增大，由操作過電壓引起的絕緣閃絡、設備破壞事故的幾率更加突出。 -
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。 -
The application of alternating current conversion driving control system based on plc in ocrylic fibres water scrubbing draw machine
的交流變頻拖動控制系統在腈綸水洗牽伸機上的應用 -
The ac - dc - ac voltage source inverter ( vsi ) main circuit and tms320lf2407 are selected to form high performance alternating current ( ac ) excitation system of asg in this dissertation after detail schemes argumentation
本論文在詳細方案論證的基礎上選擇了交直交電壓型主電路和數字信號處理器tms320lf2407構成高性能的異步化同步發電機交流勵磁系統。 -
The ac - dc - ac voltage source inverter ( vsi ) main circuit and tms320f240 are selected to form high performance alternating current ( ac ) adjusting - speed system in this dissertation after detail schemes argumentation
本論文在詳細方案論證的基礎上選擇了交?直?交電壓型主電路和數字信號處理器tms320f240構成交流調速系統。 -
Alternating - current traction system
交流電?運?方式 -
The general principles of economical operation for fans pumps, compressors system of alternating - current electric drive
交流電氣傳動風機泵類壓縮機系統經濟運行通則
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