BSL PRO 4 Manual - Biopac

Part C — Analysis Functions 2753D Output ExampleOutput EventsCompare ECG cycles in 3D Output. The following example shows how to BSL PROwill generate a 3D image using each cross section of ECG.a) Cycles/Peaks tab: set the threshold level to identify each R-wave.b) Selection tab: set the edges toCurrent PeakLeft edge -.5 secondsRight edge .5 secondsc) On the Output tabEnable 3D OutputSpecify the channel to generate a surface from.Choose “cycle data” for the cross-section format.d) Click Find All Cycles.Toggle the “Output events” checkbox at the topof the Events tab to turn Event Output on andoff.The Cycle/Peak Detector Output mode candefine events at specific locations; a maximumof two events per cycle can be inserted withEvent Output. After the Peak Detector haslocated a cycle and adjusted the selection, thedata within that cycle can be analyzed and usedto create new events in the graph (data-driven ortime specific).Event definitionInsertion method &channel selectionBrief definitions follow, see the Event Location table on page 277 for details:At edge place the event directly at the specified edge (left or right). See EdgeAdjustment on page 276.Percent change looks for a crossing based on a percentage of the value of thesignal at the corresponding edge and places the event when a signal increases ordecreases in value from the edge.% peak to peak looks for a point where the signal's value has changed by apercentage of the maximum peak-to-peak amplitude distance over the selectedarea and places the event when a signal increases or decreases in value from theedgeMinimum place events at the minimum of a specific channel's data within theselection.Maximum place events at the minimum of a specific channel's data within theselectionThe channel whose data should be examined is specified in the pull-down menudirectly to the right of the insertion method pull-down menu:BSL PRO Manual