·摘 要 根據永磁無刷電機的工作原理,設計了工業縫紉機數字位置伺服控制系統。該系統以三菱M16C 系列單片機作為核心控制器,采用了電流的預估和模糊PID 控制,實現縫紉機的啟動,調速和停車定位等控制,并給出了實驗結果。
上傳時間: 2013-06-13
上傳用戶:coeus
自定義的組件包。其中包含了市場上很炫的優秀的用戶體驗組件, 供大家業務開發用。
標簽: android-w android widget song
上傳時間: 2013-05-16
上傳用戶:huannan88
此文檔介紹了,臺達伺服電機CANOPEN協議的使用,包括硬件接口定義,軟件協議要求,編程規范等等
上傳時間: 2013-08-02
上傳用戶:1234567890qqq
Sparse LU Decomposition using FPGA,使用fpga實現lu分解的算法實現
標簽: Decomposition Sparse using FPGA
上傳時間: 2013-08-14
上傳用戶:Vici
DVD數字伺服系統DPD循跡伺服相位比較算法,可以根據輸出波形判斷循跡伺服情況
上傳時間: 2013-08-21
上傳用戶:familiarsmile
ID 型號廠家用途構造溝道v111(V) ixing(A) pdpch(W) waixing 1 2SJ11 東芝DC, LF A, JChop P 20 -10m 100m 4-2 2 2SJ12 東芝DC, LF A,J Chop P 20 -10m 100m 4-2 3 2SJ13 東芝DC, LF A, JChop P 20 -100m 600m 4-35 4 2SJ15 富士通DC, LF A J P 18 -10m 200m 4-1 5 2SJ16 富士通DC, LF A J P 18 -10m 200m 4-1 6 2SJ17 C-MIC J P 20 0.5m 10m 4-47 7 2SJ18 LF PA J(V) P 170 -5 63 4-45 8 2SJ19 NEC LF D J(V) P 140 -100m 800m 4-41 9 2SJ20 NEC LF PA J(V) P 100 -10 100 4-42 10 2SJ22 C-MIC J P 80 0.5m 50m 4-48 11 2SJ39 三菱LF A J P 50 -10m .15/CH 4-81 12 2SJ40 三菱LF A,A-SW J P 50 -10m 300m 4-151 13 2SJ43 松下LF A J P 50 20m 250m 4-80A 14 2SJ44 NEC LF LN A J P 40 -10m 400m 4-53A 15 2SJ45 NEC LF A J P 40 -10m 400m 4-53A 16 2SJ47 日立LF PA MOS P -100 -7 100 4-28A 17 2SJ48 日立LF PA, HS MPOSSW P -120 -7 100 4-28A 18 2SJ49 日立LF PA,HS PMSOWS P -140 -7 100 4-28A 19 2SJ49(H) 日立HS PSW MOS P -140 -7 100 4-28A 20 2SJ50 日立LF/HF PA,HMSO SPSW P -160 -7 100 4-28A 21 2SJ50(H) 日立HS PSW MOS P -160 -7 100 4-28A 22 2SJ51 日立LF LN A J P 40 -10m 800m 4-97A 23 2SJ55 日立LF/HF PA,HMSO SPSW P -180 -8 125 4-28A
上傳時間: 2013-10-10
上傳用戶:13162218709
針對測量船伺服系統存在隨機誤差的情況,為提高角誤差的精度,基于著名的Singer模型建立了航天測量船伺服系統卡爾曼濾波算法,并通過計算機進行了實際測量數據的仿真實驗。從實驗仿真結果分析可看出,采用提出的算法,能夠較大程度的減小角誤差電壓含有的隨機誤差,驗證了本方法的有效性,達到了提高測量船測控精度的目的。
上傳時間: 2013-11-18
上傳用戶:Avoid98
第四章 信號分離電路 第四章 信號分離電路第一節 濾波器的基本知識一、濾波器的功能和類型1、功能:濾波器是具有頻率選擇作用的電路或運算處理系統,具有濾除噪聲和分離各種不同信號的功能。2、類型:按處理信號形式分:模擬濾波器和數字濾波器按功能分:低通、高通、帶通、帶阻按電路組成分:LC無源、RC無源、由特殊元件構成的無源濾波器、RC有源濾波器按傳遞函數的微分方程階數分:一階、二階、高階第一節 濾波器的基本知識 第一節 濾波器的基本知識二、模擬濾波器的傳遞函數與頻率特性(一)模擬濾波器的傳遞函數模擬濾波電路的特性可由傳遞函數來描述。傳遞函數是輸出與輸入信號電壓或電流拉氏變換之比。經分析,任意個互相隔離的線性網絡級聯后,總的傳遞函數等于各網絡傳遞函數的乘積。這樣,任何復雜的濾波網絡,可由若干簡單的一階與二階濾波電路級聯構成。 第一節 濾波器的基本知識(二)模擬濾波器的頻率特性模擬濾波器的傳遞函數H(s)表達了濾波器的輸入與輸出間的傳遞關系。若濾波器的輸入信號Ui是角頻率為w的單位信號,濾波器的輸出Uo(jw)=H(jw)表達了在單位信號輸入情況下的輸出信號隨頻率變化的關系,稱為濾波器的頻率特性函數,簡稱頻率特性。頻率特性H(jw)是一個復函數,其幅值A(w)稱為幅頻特性,其幅角∮(w)表示輸出信號的相位相對于輸入信號相位的變化,稱為相頻特性。
上傳時間: 2014-12-23
上傳用戶:wutong
高速數字系統設計下載pdf:High-Speed Digital SystemDesign—A Handbook ofInterconnect Theory and DesignPracticesStephen H. HallGarrett W. HallJames A. McCallA Wiley-Interscience Publication JOHN WILEY & SONS, INC.New York • Chichester • Weinheim • Brisbane • Singapore • TorontoCopyright © 2000 by John Wiley & Sons, Inc.speeddigital systems at the platform level. The book walks the reader through everyrequired concept, from basic transmission line theory to digital timing analysis, high-speedmeasurement techniques, as well as many other topics. In doing so, a unique balancebetween theory and practical applications is achieved that will allow the reader not only tounderstand the nature of the problem, but also provide practical guidance to the solution.The level of theoretical understanding is such that the reader will be equipped to see beyondthe immediate practical application and solve problems not contained within these pages.Much of the information in this book has not been needed in past digital designs but isabsolutely necessary today. Most of the information covered here is not covered in standardcollege curricula, at least not in its focus on digital design, which is arguably one of the mostsignificant industries in electrical engineering.The focus of this book is on the design of robust high-volume, high-speed digital productssuch as computer systems, with particular attention paid to computer busses. However, thetheory presented is applicable to any high-speed digital system. All of the techniquescovered in this book have been applied in industry to actual digital products that have beensuccessfully produced and sold in high volume.Practicing engineers and graduate and undergraduate students who have completed basicelectromagnetic or microwave design classes are equipped to fully comprehend the theorypresented in this book. At a practical level, however, basic circuit theory is all thebackground required to apply the formulas in this book.
上傳時間: 2013-10-26
上傳用戶:縹緲
我司是專業PCB樣板制造的生產企業www.syjpcb.com/w 現在我司工程部提供的PCB設計規則要求
上傳時間: 2013-12-17
上傳用戶:fanxiaoqie