約束浮體 的英文怎麼說
中文拼音 [yāoshùfútǐ]
約束浮體
英文
constrained floating body-
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。The design of control and communication software : the software realized the communication of the five bouys with the control vessel and the acoustic emission vessel ; it controls the data acquisition system, it restricts the five bouys in the remote instructions from the control vessel and the acoustic emission vessel, and it also transmits the position and time information from dgps, the bearing information of the underwater acoustic construction from a electronic compass of type of tcm2 when in collection period of time
控制和通信軟體設計：各浮標工作在指揮船和發射船遙控指令內容的約束下，控制和通信軟體實現了浮標與指揮船以及發射船的通信，控制數據採集系統工作，並在採集時段完成gps位置、時間與矢量水聽器方位信息的傳輸。The 4th chapter examines the effect of china ' s wto accession on the stability of current exchange regime through the channel of trade, capital flow, balance of international payment and financial servic e liberalization provided the commitment china made during the accession would be fulfilled without discount. one of conclusions drawn from the analysis is that flexibility of china ' s exchange rate regime should be increased to cushion the external shocks whose effects tend to amplify in new environment
第五章討論了中國加入wto后具體的匯率制度選擇和安排問題，在分析了需要和現實約束條件的基礎上，提出了一個匯率制度與貨幣政策體系聯動的安排方案，匯率制度採用一籃子盯住爬行的帶有區間的有管理浮動匯率制，以賦予貨幣政策足夠的靈活性來各類來自國內外的真實沖擊。In the early 70 " s, the usd - centred international currency svstem collapsedo and the majority of western countries began to carrv out the floating - rate svstem. thus the rate fluctucates frequently subject to no limits. for example, the l ' sd rate once jumped to a very high point and then dropped down again during the 80 " s
70年代初期，以美元為中心的國際貨幣體系崩潰以後，西方主要國家先後實行了浮動匯率制度。從此，匯率的變化不再受什麼約束，波動頻繁。比如1985年2月以後的三、四年間，美元匯率從高峰急劇而持續下降，貶值達50以上， 1989年又一度大幅回升。分享友人