Inside the Trimble X9: Deep Dive into Trimble X-Drive Technology 6
Survey-gradeleveldataprovidesproofagainstsurveytruth.Self-levelingwillensureaccuracy
youcantrustwithouttargetsorextracontrolontopographicsurveys,floorflatness
applications,orwhenmonitoringtheverticalityofcolumnsorwallsduringconstruction.For
example,theverticalityofa10mbuildingwillhaveanerrorofjust0.14mmandthefloor
flatnessofa20mfloorwillhaveanerrorofjust0.3mm.Withoutsurvey-gradeleveling,some
scannerscanhave >8mmerrorat10mand>17mmerrorat20m.
Figure 4: Survey-Grade Accuracy
Self-levelingmustbeenabledforinfieldregistration.IftheTrimbleX9istiltedmorethan10°
andupto45°,theacquiredscanwillberoughlyleveled,butnotguaranteedthe3"accuracy.
Thescanwillbeflaggedas"Notleveled,"howeverTrimblePerspectivefieldsoftwarecan
automaticallyregisterthescanifthereissufficientoverlapwiththescanyou'reregisteringto.If
theinstrumentistilted>45°fromeithersideofitsverticalaxis,Perspectivewilldisplayan
errormessageandpreventscanacquisition.Whenthescannerisupside-downandthetiltis
withinarangeof10°oftheverticalaxis,thescanwillbeleveledwithsurvey-gradeaccuracyand
flippedautomaticallyforcorrectorientation.Thesmartself-levelingalsohasreal-timelevel
monitoringtostopscansiftiltisdisruptedduringscanacquisition.
Figure 5: Scanner Orientations for Self-Leveling
