- 脈沖持續(xù)時(shí)間調(diào)制
- 脈沖寬度調(diào)制
- 脈寬調(diào)制
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pulse-width modulation中文什么意思
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(shí)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(duì)加速度計(jì)及其測(cè)試技術(shù)的發(fā)展歷史和現(xiàn)狀,液浮擺式加速度計(jì)的工作原理和數(shù)學(xué)模型等作了簡(jiǎn)要的介紹,然后確定了以二元調(diào)寬脈沖再平衡測(cè)試回路為設(shè)計(jì)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(shí)設(shè)計(jì)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(cè)試回路的分辨率、采樣約束以及測(cè)試精度等基本問題,并按照系統(tǒng)分析的結(jié)果設(shè)計(jì)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(cè)試系統(tǒng)各部分硬件電路,驗(yàn)證了電路的正確性,最后按照測(cè)試系統(tǒng)的要求,采用了美國(guó)ni公司專為測(cè)試領(lǐng)域所開發(fā)的虛擬儀器工具? ? labview作為測(cè)試軟件開發(fā)工具,利用該圖形化編程語言完成了測(cè)試系統(tǒng)軟件部分的設(shè)計(jì),實(shí)現(xiàn)了測(cè)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(diǎn)說明了二臺(tái)階亞波長(zhǎng)衍射微透鏡的兩種設(shè)計(jì)方法，并對(duì)兩種方法作了比較，得出了亞波長(zhǎng)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。