DAHLIN

Dahlin, D.C., Miwa, G.T., Lu, A.Y.H. and Nelson, S.D. (1984). N-Acetyl-p-benzoquinone imine a cytochrome P-450-mediated oxidation product of acetaminophen. Proc. Natl Acad. Sci. USA 81, 1327-1331. 

James, W.D., Dahlin, E.S. and Carlson, D.L. (2005). Chemical compositional studies of archaeological artifacts comparison of LA-ICP-MS to INAA measurements. Journal of Radioanalytical and Nuclear Chemistry 263 697-702. 

Dahlin K, Mager EM, Allen L, Tigue Z, Goodglick L, Wadehra M, Dobbs L (2004) Identification of genes differentially expressed in rat alveolar type I cells. Am J Respir Cell Mol Biol 31(3) 309-316... 

As our final minimal-prototype controller, let us consider the Dahlin algorithm. The basic notion is to specify a desired step setpoint response that looks like a deadtime followed by an exponential rise up to the setpoint. See Fig. 20.4. 

Sunden, H., Dahlin, N., Ibrahem, I., Adolfsson, H. and Cordova, A. Novel Organic Catalysts for the Direct Enantioselective a-Oxidation of Carbonyl Compounds. Tetrahedron Lett., 2005, 46, 3385-3389. 

There is a variety of specifications that can be imposed on the system closed-loop response for a given change in set point. These lead to a number of alternative discrete-time control algorithms—the best known of which are the Deadbeat and Dahlin s algorithms. 

DAHLIN<44) suggested that, in order to avoid the large overshoots and oscillatory behaviour which are characteristic of the deadbeat algorithm, the specification of the system closed-loop response to a step change in set point should be the same as that for a first-order system with dead time. The first-order time constant can then be employed as a design parameter which can be adjusted to give the desired closed-loop response. Hence ... 

Fig. 7.96. Comparison of response of the controlled variable using deadbeat and Dahlin s response specification algorithm...

Dahlin, E. B. Instrum. Control Syst. 41 (6) (1968) 77. Designing and tuning digital controllers. 

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