An experimental technique for investigating the linear optics of the storage ring by measuring the beam response to weak disturbances of the deflecting and focusing field is described. The electron-optical model of the damping ring of the VEPP-5 injection complex has been calibrated by measuring the closed orbit distortions and the betatron tune response to field variations of the dipole, quadrupole, and sextupole steering magnets. An analytical expression has been derived for each measured response, which has made it possible to solve the problem of calibrating the damping ring model by means of a standard accelerator optics design program. The model obtained has been verified by measuring the horizontal beta function and the betatron phase advances between the beam position monitors using the model-independent technique.
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