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Acta Physiol Pharmacol Bulg. 1991;17(2-3):139-46.

Computer-controlled attenuator.

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Institute of Physiology, Bulgarian Academy of Sciences, Sofia.


Various possibilities for applying electronic computer-controlled attenuators for the automation of physiological experiments are considered. A detailed description is given of the design of a 4-channel computer-controlled attenuator, in two of the channels of which the output signal can change by a linear step, in the other two channels--by a logarithmic step. This, together with the existence of additional programmable timers, allows to automate a wide range of studies in different spheres of physiology and psychophysics, including vision and hearing.

[Indexed for MEDLINE]

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