The paper has elaborated the working principle and applied circuit of this system " s every unit , and introduced the component part of this system and the operating situation in the laboratory or on the spot 在必要時對相關(guān)設(shè)備進(jìn)行自動控制;本系統(tǒng)在現(xiàn)場使用后取得很好效果,并得到了進(jìn)一步的推廣應(yīng)用。
The paper has elaborated the working principle and applied circuit of this system ' s every unit , and introduced the component part of this system and the operating situation in the laboratory or on the spot 論文對系統(tǒng)組成各單元的工作原理、應(yīng)用電路進(jìn)行了闡述,并介紹了系統(tǒng)的主要組成部分及實(shí)驗(yàn)室和現(xiàn)場運(yùn)行情況。
Appearance and application of fieldbus control technology is base on smart instruments . this paper design a applied circuit of hart protocol smart instrument on which mainly discusses and analyze importance and difficulty of hart protocol 本文的目的是在詳細(xì)討論、分析hart協(xié)議智能儀表的設(shè)計重點(diǎn)、難點(diǎn)和技術(shù)關(guān)鍵的基礎(chǔ)上,設(shè)計完整的hart協(xié)議智能現(xiàn)場通信器的實(shí)用電路。
In this process , the thesis discusses detailedly the method which can improve the resolving power in measuring component and can deal with the probe circuit , and puts forward the design method of applied circuit . then the thesis discusses the methods of line and circle interpretation 接著又討論了計算機(jī)數(shù)控系統(tǒng)的控制策略,主要包括:知道預(yù)定軌跡的直線與圓弧插補(bǔ)的方法、連續(xù)掃描系統(tǒng)的控制策略、 pid調(diào)節(jié)器的設(shè)計及pid參數(shù)的整定方法等。
Abstract : to obtain the high frequency ( hf ) array signals , an applied circuit called hf array signals generator is designed using dsp and duc ( digital up converter ) . the generator simulates the generation of output signals of 9 - element arrays with different array format , different direction of arrival ( doa ) and existing cochannel signals respectively 為了在實(shí)驗(yàn)室中獲得短波天線陣列信號,應(yīng)用dsp芯片和duc芯片(數(shù)字上變頻器)設(shè)計了一個實(shí)用電路短波陣列信號發(fā)生器,模擬實(shí)現(xiàn)了短波九元天線陣的多種陣型、不同來波方向及存在同頻多信號時的陣列輸出信號。