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barcode reader integration with asp.net KeUTS in Software
KeUTS Code128 Recognizer In None Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications. Creating Code128 In None Using Barcode printer for Software Control to generate, create Code128 image in Software applications. GA(S) = Code 128 Code Set B Reader In None Using Barcode reader for Software Control to read, scan read, scan image in Software applications. Encoding Code 128 Code Set C In C# Using Barcode generation for Visual Studio .NET Control to generate, create Code 128C image in .NET framework applications. (Ts + l)sU  e
Create Code 128 Code Set A In .NET Framework Using Barcode creation for ASP.NET Control to generate, create Code 128 image in ASP.NET applications. Generate Code 128B In .NET Using Barcode drawer for VS .NET Control to generate, create Code 128 Code Set B image in .NET applications. T.V
Printing Code 128 Code Set C In VB.NET Using Barcode creator for VS .NET Control to generate, create Code 128 image in .NET applications. Bar Code Creation In None Using Barcode creator for Software Control to generate, create barcode image in Software applications. (26.36) Making Universal Product Code Version A In None Using Barcode generator for Software Control to generate, create GS1  12 image in Software applications. ANSI/AIM Code 39 Generator In None Using Barcode generator for Software Control to generate, create Code 39 image in Software applications. This expression may be simplified to give GI\(S) = K(l  eeTS)eFTS S(TS + 1) Make UCC128 In None Using Barcode drawer for Software Control to generate, create UCC128 image in Software applications. Bar Code Generator In None Using Barcode creation for Software Control to generate, create barcode image in Software applications. Taz c(r) delayed by (Ta 7) Painting Code 2 Of 5 In None Using Barcode creator for Software Control to generate, create Code 2 of 5 image in Software applications. Painting Barcode In Java Using Barcode creator for BIRT Control to generate, create bar code image in BIRT reports applications. (26.37) EAN / UCC  14 Scanner In Visual Basic .NET Using Barcode decoder for VS .NET Control to read, scan read, scan image in Visual Studio .NET applications. Generate USS128 In .NET Using Barcode encoder for ASP.NET Control to generate, create EAN / UCC  13 image in ASP.NET applications. FIGURE 267 Response of firstorder, sunpleddata system with transport lag.
Scanning UPC  13 In .NET Framework Using Barcode reader for .NET Control to read, scan read, scan image in VS .NET applications. ANSI/AIM Code 39 Reader In Java Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications. SAMPLEDDATA CONTROL OF A FIRSTORDER PROCESS WITH TRANSPORT LAG
Barcode Creation In ObjectiveC Using Barcode creation for iPhone Control to generate, create barcode image in iPhone applications. Encode Barcode In .NET Framework Using Barcode encoder for ASP.NET Control to generate, create barcode image in ASP.NET applications. Note that the right side of Eq. (26.37) does not include a term involving a nonintegral power of T. Obtaining the Ztransform of GA(S) gives an expression, which is G(z, m). The details are shown in the following steps. GA(Z) = G(z,m) = K(l  z )z~~ G(zm) ( s(7s1+ l,} eTfr
K(z  1) z _ eTh
Simplifying this expression gives G(z,m) = K(l  b) z(z  b) (26.38) The other terms needed to evaluate C(z,m) in Eq. (26.23) are G(z) and R(z). G(z) is given in Eq. (26.11). For a unitstep change in set point Substituting Eqs. (26.11), (26.38), and (26.39) into Eq. (26.23) gives, after considerable algebraic manipulation K(1  b)z (26.40) C(z,m) = (z  l){z2 + [K(l  d)  blz + K(d  b)} Inversion of this expression will give the value of the delayed response c[t  (T UT )]. These values am, of course, the peak values of c(t) as illustrated in Fig. Mosler (1966) has inverted Eq. (26.40) by partial fraction expansion; the result is a rather complex expression. He used this result to obtain some design rules for determining the values of K and T that will produce a transient with quarterdecay ratio. The development of the rules is quite involved and beyond the scope of this book. SUMMARY In this chapter, the principles of sampleddata theory have been applied to the proportional control of a process, which represents a large class of systems in chemical processing, namely, a process that consists of a firstorder process with transport lag [e aTs/(~~ + l)]. Since the transport lag parameter (UT ) may not be an integral number of sampling periods, the modified Ztransform was used to obtain the pulse transfer function of the system. As the order of the characteristic equation for the closedloop system increases, the stability criteria become more and mom complex and require that several inequalities be satisfied simultaneously for stability. For the case of proportional control of a firstorder system without transport lag, some simple design rules were developed for tuning the proportional controller to obtain a desired decay ratio. SAMPLEDDATA CONTROL SYSTEMS
PROBLEM
26.1. The stirredtank control system shown in Fig. P26.1 blends a stream of concentrated solution with a process stream to maintain a desired concentration of solute in the outlet stream. The flow rates and concentrations are indicated in the diagram. The chemical analysis, which must be done manually by withdrawing a small sample from the tank, takes 1.0 min. At the end of each analysis, the chemist sets a dial immediately to a value corresponding to the concentration just determined. The dial, in turn, feeds a concentration signal to the controller. As soon as one sample is analyzed, a new one is withdrawn from the tank and analyzed. The flow rate through the valve varies linearly from 0 to 0.02 liter/min as the valvetop pressure varies from 3 to 15 psig. Under normal conditions, the process stream is free of solute. However, from time to time, a load change may occur in the form of a change in concentration of solute in the process stream entering the tank. (a) Show that the system is equivalent to a sampleddata control system and draw its block diagram. (b) From the design rules developed by Mosler (1966, Eq. 65), one can show that the value of K, required for quarterdecay ratio and fast sampling (T = ur) is 10.3 psi&/l). Using this value of Kc, sketch the transient response for c and q for a step change in ci of magnitude 0.5 g/l. Determine the extreme values of c, p, and q during the transient. Determine the value of c(m). (c) If the chemist uses a continuous analyzer having no lag, but still sets the dial manually as just described, every 60 set, show how the block diagram changes and determine K, to obtain quarterdecay ratio. Use the design rule given by Eq. (26.32) to determine this gain.

