Essentials of control techniques and Keyword Stats 4 pptx

... easily outperform them. BD CA Motor +12v 0v Figure 4. 3 Schematic of H-bridge. 91239.indb 45 10/12/09 1 :41 :22 PM 44 ◾ Essentials of Control Techniques and Theory Non-contact variations on the potentiometer ... voltage and position. ClockwiseAnticlockwise Figure 4. 1 Two-phase encoder waveforms. Figure 4. 2 A potentiometer can measure position. 91239.indb 43 10/12/09 1 :...

Ngày tải lên: 21/06/2014, 13:20

... between output and input magnitude, and a phase shift. –1 4j –1 2j –1 0j –1 –2j –0.5 4j –0.5 2j –0.5 0j –0.5 –2j 0 –2j 0.5 –2j 1 –2j –1 –4j –0.5 –4j 0 –4j 0.5 –4j 1 –4j 0 4j 0.5 4j 1 4j 1 2j 1 0j 0.5 ... 7 .4 Bode plot for 10/(s + 2)(s + 5). 91239.indb 91 10/12/09 1 :42 :47 PM 82 ◾ Essentials of Control Techniques and Theory Now the derivative of a sine-wave is another sine...

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... 36788 0 2 642 4 0 36788+−++(. .)(. .)ak ak == 0 91239.indb 109 10/12/09 1 :43 :25 PM 1 04 ◾ Essentials of Control Techniques and Theory added together. We know that in evaluating the determinant of A, ... Computer Control ◾ 109 i.e., ()ak ak2 148 2 361 0− += ak =± =± 741 741 361 741 740 756 2 () − Since ak must be less than 20, we must take the smaller value, giving a val...

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... variable. We must also impose a limit of ±1 on u. 91239.indb 122 10/12/09 1 :43 :44 PM 1 24 ◾ Essentials of Control Techniques and Theory d = 22., e = 16 1., f = 44 Try these new numbers in the ... term:   1 1 5 2 ssa++ 91239.indb 143 10/12/09 1 :44 : 14 PM 122 ◾ Essentials of Control Techniques and Theory <div id="trolley" style="positio...

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... = 1+s 2+s 1 G 1 G plane plane 1 1 Figure 11.11 Whiteley plots for G = 1/(1 + s) and G = 1/(2 + s). 91239.indb 159 10/12/09 1 :44 :40 PM 1 64 ◾ Essentials of Control Techniques and Theory Whenever we have defined an example by ... 153 10/12/09 1 :44 :31 PM 156 ◾ Essentials of Control Techniques and Theory implying from the theory of complex functions that s leaves the...

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... 14. 1. 91239.indb 192 10/12/09 1 :45 :19 PM 196 ◾ Essentials of Control Techniques and Theory Now the unit impulse is the time-derivative of the unit step, so (begging all sorts of questions of ... 1 Figure 14. 2 Step response of (1 + 3s)/(1 + s). 91239.indb 196 10/12/09 1 :45 :27 PM 1 84 ◾ Essentials of Control Techniques and Theory 13.5 Neural Nets When first...

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... τ 1 ) u 2 g(t – τ 2 ) u 3 g(t – τ 3 ) Figure 15 .4 Superposition of impulse responses. 91239.indb 208 10/12/09 1 :45 :44 PM 2 24 ◾ Essentials of Control Techniques and Theory so Ys ba Xs Xs() () () ()= − − ( ) 1 12 where ... sum of the individual responses, as shown in Figure 15 .4. u(t) x(t) t t Figure 15.1 Input and output as time plots. 91239.indb 207 10/12/09 1 :45...

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... problem of optimal control of a linear system. u = –1 u = +1 x . x Figure 22.2 Piecewise linear suboptimal controller. 91239.indb 309 10/12/09 1 :48 :46 PM 288 ◾ Essentials of Control Techniques and ... “ride,” in terms of vibration and smoothness of control. 91239.indb 296 10/12/09 1 :48 :27 PM Optimal Control Nothing but the Best ◾ 307 is form of analysis and...

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... equations, 140 – 144 and time functions, 271 Leakage rate, 10–11 Limit switches, 42 91239.indb 320 10/12/09 1 :49 :03 PM 312 ◾ Essentials of Control Techniques and Theory is symmetric, and then to ... equation, 244 controller with state, 244 feedback around, 242 feedback matrix, 243 pole cancellation, 245 responses with feedforward, 245 – 246 transfer function, 244 Con...

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... Acceleration 44 4. 4 Output Transducers 44 4. 5 A Control Experiment 46 5 Adding Control 49 5.1 Introduction 49 5.2 Vector State Equations 49 5.3 Feedback 52 5 .4 Another Approach 53 5.5 A Change of Variables ... facilities of Java. e web page acts as a “wrapper” 91239.indb 12 10/12/09 1 :40 :49 PM vi ◾ Contents 4 Practical Control Systems 41 4. 1 Introduction...

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