脈浮數 的英文怎麼說
中文拼音 [màifúshǔ]
脈浮數
英文
floating and rapid pulse-
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 video signal processing circuit realizes the primary catching, filtering and signal amplifying. variable threshold binarization processing circuit and two - channel counter are designed to sample to count the output pulse signal, which is processed, deposited and displayed in microprocessor. the communication interface circuit with the computer is also designed
視頻信號處理電路完成了原始信號的初級捕捉、濾波、視頻放大等處理，設計了浮動閾值二值化處理電路，採用兩路計數器對輸出脈沖信號采樣計數，最後送入微處理器進行運算處理，可實現測量值的儲存、顯示等，並設計了與上位機的通訊介面。The primary task of this thesis is how to design a set of data gathering system, which can track record original wave forms of sound signals, the moment that sound impulse range pass gate limits, the data on the orientations of vector water - sensor in the buoy and the data obtained by gps
本論文以整個系統的硬體設計為主要研究對象，主要任務是設計一套數據採集系統，完成對聲信號的原始波形及聲脈沖幅度過門限時刻、浮標上矢量水聽器的方位數據及gps數據的記錄。At first, the interactions of hts permanent magnet and applied field are studied, that is the levitation force of ybco bulks over the ndfeb guideway and the influences of the applied field to the hts permanent magnet. secondly, the pulsed field magnetization properties of ybco bulks are studied. at last, the influence of the sample ' s thickness, shape as well as the density to the levitation force over the ndfeb guideway and the trapped flux of ybco bulk are studied
文中主要研究了高溫超導永磁體在外場下的受力狀況以及外場對其內部磁通量的影響、高溫超導ybco塊材在不同脈沖場下的俘獲磁通特性以及超導體塊材自身的厚度、形狀、密度等參數對其在外場下受到的懸浮力和俘獲磁通的影響。分享友人