Impulse response numerical determination

For the design of the actively compensated RF pulse, experimental and numerical determination of the response function h(t) of the circuit is necessary. We should also keep in mind that modification to the circuit, such as probe timing, insertion or removal of RF filters, and so on, can alter h(t). In practice, it is convenient to measure the response y t) to a step excitation u(t) instead of that to the impulse excitation. By performing Laplace transformation to... 

The axial dispersion coefficient can be determined experimentally, for instance, by finding the numerical value of the Peclet number, in impulse or step-response experiments. This is, however, possible, provided that experimental equipment (reactor) is available to carry out the experiments. This is not always the case. If no reactor experiments can be performed, the best approach is to estimate the value of the axial dispersion coefficient firom the available correlations. 

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