Columns - or kolonnenfoermige display device for electric signals with limit position for digital signals.

摘要

A system for displaying the level of a variable electrical signal is disclosed, in which the variable electrical signals are converted into digital form, which are in turn decoded and arranged to consecutively activate a vertical series of indicator elements up and down the series in response to increases and decreases respectively in the digital signal, and with any preceding activated element being deactivated so that only a single individual indicator element corresponding to each digital signal is activated. Accordingly, the rise and fall of the position of the activated indicator element indicates the level of the electrical signal. An arrangement is also disclosed for providing signal limit indication comprising means for comparing the digital signal corresponding to the variable electrical signal with preset digital limit signals which means drives a limit indicator element whenever the generated digital signal is outside the preset values.