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barcode reader integration with asp.net I I I I I I I I in Software
I I I I I I I I Scanning Code 128C In None Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications. Code128 Printer In None Using Barcode creation for Software Control to generate, create Code 128 Code Set B image in Software applications. Closedloop transient response of sampleddata system for a unit step in set point.
Code128 Recognizer In None Using Barcode scanner for Software Control to read, scan read, scan image in Software applications. Code 128 Code Set A Encoder In Visual C#.NET Using Barcode generator for .NET Control to generate, create USS Code 128 image in VS .NET applications. SAMPLEDDATA CONTROL SYSTEMS
Code128 Generation In .NET Using Barcode encoder for ASP.NET Control to generate, create Code 128 Code Set C image in ASP.NET applications. Code 128 Maker In Visual Studio .NET Using Barcode generator for Visual Studio .NET Control to generate, create Code 128 Code Set A image in Visual Studio .NET applications. The stability boundaries represented by these three equations have been plotted by Mosler et al. (1966). The stability constraints for the case of n = 2, which require four inequalities, also may be found in Mosler (1966). This demonstrates that as the value of transport lag (UT) increases relative to a fixed sampling period T, the order of the characteristic equation increases and the stability criteria become more and more complex. Draw Code128 In Visual Basic .NET Using Barcode creator for VS .NET Control to generate, create Code 128 image in VS .NET applications. EAN13 Creator In None Using Barcode generation for Software Control to generate, create EAN13 Supplement 5 image in Software applications. TRANSIENT RESPONSE OF CLOSEDLOOP SAMPLEDDATA SYSTEMS
Encoding Code128 In None Using Barcode creator for Software Control to generate, create USS Code 128 image in Software applications. UCC  12 Generation In None Using Barcode encoder for Software Control to generate, create UCC128 image in Software applications. We shall consider the transient response for the system shown in Fig. 26.1 for a step change in set point. For this particular disturbance, the block diagram may be drawn as shown in Fig. 26.4. For the special case of a step change in set point, the sampling switch and the hold in Fig. 26.1 can be placed in the forward loop of Fig. 26.4. For a step change in R occurring just before a sampling instant, it does not matter whether the sampling occurs before the comparator or after the comparator. The reason for redrawing the block diagram is that the expression for C(z) for Fig. 26.4 is simpler than the expression for Fig. 26.. 1. Using the method described in Chap. 23, one can obtain for C(z) (26.22) where G(z) = G,G,Gh(z) The expression for C(z ,m) is C(z*m) = G(zmYW 1 + G(z) (26.23) Creating Barcode In None Using Barcode maker for Software Control to generate, create barcode image in Software applications. Encode Code39 In None Using Barcode encoder for Software Control to generate, create Code 3/9 image in Software applications. Equations (26.22) and (26.23) can also be found from Table 23.1. If one were to obtain expressions for C(z) and C(z ,m) for the system in Fig. 26.1, the result would be as follows: (26.24) and c(z,m) = RG,G,(zm) G(z,mWcG,(z) 1 + G(z) (26.25) Create I2/5 In None Using Barcode creator for Software Control to generate, create Uniform Symbology Specification ITF image in Software applications. Draw GTIN  13 In Java Using Barcode printer for Java Control to generate, create GS1  13 image in Java applications. FIGURE 264 Rearranged block diagram.
Printing Data Matrix In Java Using Barcode creator for Java Control to generate, create Data Matrix image in Java applications. Bar Code Generation In None Using Barcode generator for Font Control to generate, create barcode image in Font applications. SPLEDDATA CONTROL OF A FIRSTORDER PROCESS WITH TRANSPORT LAG
Decoding UCC  12 In Visual Basic .NET Using Barcode recognizer for VS .NET Control to read, scan read, scan image in .NET framework applications. Decode ANSI/AIM Code 39 In .NET Framework Using Barcode decoder for .NET framework Control to read, scan read, scan image in .NET applications. If one were to use Eq. (26.24) or Eq. (26.25) for a step change in R, the result for c(nT) and c,&T) would be, of course, the same as that obtained using Eqs. (26.22) and (26.23); these latter two are simpler than Eqs. (26.24) and (26.25). The diagram in Fig. 26.4 may replace the diagram in Fig. 26.1 for the more general setpoint function r(t), which is piecewise constant and where changes in r occur just before sampling instants. This more general function is a stairstep function. The transient response for the system shown in Fig. 26.4 will be considered in detail for two cases: Case I: no transport delay, i.e., a = 0 Case II: 0 < UT I T, i.e., it = 0 The results can be used to establish design criteria. Data Matrix ECC200 Printer In ObjectiveC Using Barcode generation for iPhone Control to generate, create Data Matrix image in iPhone applications. Bar Code Reader In Visual Studio .NET Using Barcode reader for VS .NET Control to read, scan read, scan image in Visual Studio .NET applications. Case I: No lkansport Lag
For this case, one canshow that Eq. (26.22) becomes C(z) R(z) where b = e For a unitstep change in set point, R = z/(z  1) and the response is expressed by K(l  b)z C(z) = (z  l)[z + K(l  b)  bl Inverting this expression gives c(nT) = A(1  [b  K(l  b)] } K(l  b) z+K(lb)b
II = 0,1,2,... (26.26) This result was derived in Chap. 23 [Eq. (23.36)] and is presented again for convenience in developing design criteria. The transient response for a specific set of parameters, shown in Fig. 26.5, consists of arcs of exponential functions that intersect at sampling instants. It is possible to make the loop gain of the system (K) so small that the response is overdamped. In fact, the value of K, below which the response is overdamped, can be found by examining Eq. (26.26). When the expression in brackets, b  K( 1  b), is greater than 0, the system no longer oscillates; therefore, we may write b  K(l b) > 0 or for overdamped response l  b An overdamped response is also shown in Fig. 26.5. b KC (26.27) SAMPLEDDATA
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An overdamped response for a closedloop system is usually considered too sluggish; consequently, the design criteria to be developed will be based on the underdamped response, such as the one shown in Fig. 26.5. Since the peaks (maximum and minimum) of the underdamped response occur at sampling instants, Eq. (26.26) may be used to compute overshoot and decay ratio. For a stable response, the ultimate value of c(t) is This result, which is the same as that for a continuous proportional control system, should not be surprising if one recalls that the system s steady state is determined by steadystate relationships that are the same for both sampleddata control and continuous control. The first peak in the direction of setpoint change occurs at t = T and the second peak in the same direction occurs at t = 3T. From this information one may compute from Eq. (26.26) the fractional overshoot and the decay ratio; the results are as follows: Fractional overshoot = Decay ratio = 40  ~(~1 = K(l  b)  b cCw) (26.29) (26.30)

