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pulse-width modulation中文是什么意思

  • 脈沖持續(xù)時間調(diào)制
  • 脈沖寬度調(diào)制
  • 脈寬調(diào)制

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  • 例句與用法
  • Pulse - width modulation
    脈沖寬度調(diào)制
  • The method to generate 8 pulse - width modulation waves with microprocessor software by mechanism of timesharing is proposed
    提出了基于分時機(jī)制的8路pwm波軟件生成法。
  • 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(shù)的發(fā)展歷史和現(xiàn)狀,液浮擺式加速度計的工作原理和數(shù)學(xué)模型等作了簡要的介紹,然后確定了以二元調(diào)寬脈沖再平衡測試回路為設(shè)計方案,并從控制理論的角度進(jìn)行了分析,著重研究了系統(tǒng)中各部分的傳遞函數(shù),利用系統(tǒng)開環(huán)傳遞函數(shù)分析了系統(tǒng)的穩(wěn)定性,同時設(shè)計了系統(tǒng)的校正網(wǎng)絡(luò);分析了二元調(diào)寬脈沖再平衡測試回路的分辨率、采樣約束以及測試精度等基本問題,并按照系統(tǒng)分析的結(jié)果設(shè)計了包括前置放大、帶通濾波、交流放大、相敏解調(diào)、脈寬調(diào)制、頻標(biāo)電路以及力矩電流發(fā)生器等測試系統(tǒng)各部分硬件電路,驗證了電路的正確性,最后按照測試系統(tǒng)的要求,采用了美國ni公司專為測試領(lǐng)域所開發(fā)的虛擬儀器工具? ? labview作為測試軟件開發(fā)工具,利用該圖形化編程語言完成了測試系統(tǒng)軟件部分的設(shè)計,實現(xiàn)了測試功能。
  • Two kinds method of design binary subwavelength diffractive microlenses are illustrated with emphasis . i obtained the result that the method of subwavelength pulse - width modulation is better than the method of linear approximation for continuous phase piece in designing binary subwavelength diffractive microlenses by comparing them
    重點說明了二臺階亞波長衍射微透鏡的兩種設(shè)計方法,并對兩種方法作了比較,得出了亞波長結(jié)構(gòu)的脈沖寬度調(diào)制法優(yōu)于連續(xù)位相的線性進(jìn)似法的結(jié)論。
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