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Concepts of transient recorder development for acoustic emission analysis
which are executed parallel. The upper loop shows the event control. The user
activates an event e.g. by pressing a button on the front panel or choosing a
menu entry from the menu bar. The programmer defines which control elements
are activated by a certain event using the so called event structure (inner frame
in the upper loop of Fig. 5). Each event has got an own case in the event structure whose subdiagram will executed if the corresponding event occurs. As long
as no event appears the event structure is in a sleeping mode which saves processor capacity.
Fig. 3: Control panel of the data acquisition card
Fig. 4: Auto sequence panel
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Otto-Graf-Journal Vol. 14, 2003