例句與造句

1. At last , this paper also design a small capacity buck - boost type chopper system , pointing out the problems and difficultes of the ac modulation voltage system in the future
   最后，對(duì)小容量斬波控制buck - boost電路調(diào)壓系統(tǒng)作了初步的設(shè)計(jì)，指出了本課題研究調(diào)壓系統(tǒng)有待解決的一些問題。
2. This paper investigates the induction motor full digital ac frequency conversion system , and develops an ac motor experiment platform based on dsp tms320f240 , the software and hardware implementation of the system is discussed in detail . the industry computer controls the dsp to output the space vector pulse width modulation voltage wave ( svpwm ) onto the induction motor . using this software we can view the state variable waveform on the pc and modify the variable in the dsp memory
   本論文結(jié)合“基于dsp的交流電機(jī)實(shí)驗(yàn)控制系統(tǒng)”實(shí)際科研項(xiàng)目，開發(fā)出基于dsp的全數(shù)字交流電機(jī)實(shí)驗(yàn)控制平臺(tái)，給出了該系統(tǒng)平臺(tái)的軟硬件設(shè)計(jì)方案，該系統(tǒng)使用工控pc機(jī)對(duì)下位機(jī)dsp進(jìn)行實(shí)時(shí)控制，在dsp中依據(jù)選定的電機(jī)控制策略程序，發(fā)出空間矢量脈寬調(diào)制形式的電壓波形，實(shí)現(xiàn)對(duì)交流電機(jī)變壓變頻控制；在上位機(jī)中能實(shí)時(shí)查看變量波形，并對(duì)dsp內(nèi)存變量進(jìn)行修改，在該平臺(tái)上能方便的使用軟件實(shí)現(xiàn)各種高性能的電機(jī)控制算法。
3. Lithium niobate is a kind of ordinarily material for guide - wave devices , it can realize low modulation voltage , fast switch velocity , low material costs , simple fabrication process and it is a mature technology . at present , lithium niobate is applied in fast optical network and optical signal processing systems
   Linbo _ 3是由來(lái)已久的波導(dǎo)類器件的材料， linbo _ 3材料能實(shí)現(xiàn)較高的調(diào)制速度和較低的調(diào)制電壓，材料成本低，工藝相對(duì)簡(jiǎn)單，是較成熟的技術(shù)，目前在高速光網(wǎng)絡(luò)和光信號(hào)處理網(wǎng)絡(luò)已經(jīng)有著重要的應(yīng)用。
4. The tests of e - o applications by our flux ktp has been realized , the results showed : optical waveguides fabricated by using an ion - exchange process , which have an exchange - ion concentration depth profile and refractive - index profile , is close to a complementary error - function distribution , optical homogeneity and device thermal stability is much better . amplitude modulation switch formed by our flux ktp has the contrast ratio of 150 : 1 and insert loss is 2 . 5 % at 1064 nm . high quality optical pulse with 1 ns width was cut successfully by using an e - o modulator from a laser pulse with 50 ns width , this modulator had run for three years , and the crystal did n ' t blackened , it showed our low conductivity flux ktp can endure high modulation voltage for a very long time
   Ktp晶體的電光應(yīng)用試驗(yàn)表明：用離子交換法制作的電光波導(dǎo)，其離子交換濃度、折射率變化符合余弦誤差函數(shù)，光學(xué)均勻性以及器件的溫度穩(wěn)定性較好；制作的強(qiáng)度調(diào)制電光開關(guān)，消光比為150 ： 1 ，對(duì)1064nm激光的插入損耗為2 . 5 ；制作的電光調(diào)制器用于激光脈沖整形試驗(yàn)，從脈沖寬度50ns的激光脈沖削出脈寬1ns的高質(zhì)量光脈沖，該電光開關(guān)經(jīng)過長(zhǎng)達(dá)三年多的使用，沒有出現(xiàn)晶體變黑現(xiàn)象，說(shuō)明本實(shí)驗(yàn)的低電導(dǎo)率ktp晶體能夠耐受長(zhǎng)時(shí)間的調(diào)制電壓。
5. It's difficult to find modulation voltage in a sentence. 用modulation voltage造句挺難的