25
Figure16‐MeasureDistance
7.1.2.5.3 FiringtheStopwatch
TheFIRINGSTOPWATCHpage(Figure17)willshowtheentereddistanceandwaitforyoutopressthe
lasertriggertostartthespeedmeasurementwhenthevehiclecrossesthestartingpointofthe
measureddistancemarker.Whilethelaserwaitsforyoutopressthetrigger
againoncethevehicle
crossestheexitdistancemarker,thescreenwillupdatetheelapsedtimeofthecalculation.Oncethe
exitpointtriggerhasbeenpressed,thescreenwillindicatethedistance,time,andcalculatedspeedof
thestopwatchresult.
NOTE:Sinceyouarejustrunningatimer,you
donothavetoaimthelaseratthevehicleduringthe
startandstopcalculationtriggerpresses.
Figure17‐FiringStopwatch