Observations(m)
X Y Z
Actual 102.003 99.999 -0.191
WLT
Integrated
Round 1 101.938 99.999 -0.193
Round 2 102.007 99.965 -0.192
Round 3 102.009 100.098 -0.195
WLT Not
Integrated
Round 4 101.060 100.538 -0.157
Round 5 101.125 100.572 -0.159
Round 6 101.115 100.472 -0.164
Table 3: Round Trip Observations (m)
Analysis
Scale Error - Analysis
Scenario 1 - Tape Measure Comparison
By analyzing the observations found in Table 1 above, scale error can be determined. To define
scale error, the recorded distances were averaged to compute the mean observed side length
of each cube. These averaged lengths were then compared against the design dimensions of
the models in order to obtain an estimate of the model viewer's scale. Here it was found that on
this device, the TCH platform projects models at a near perfect 1:1 scale, with an average error
over the three models of just -0.03%. Please note that scale error is device dependent; the
results shown here are specific to this XR10 device and the results may vary from user to user.
10 cm Cube 50cm Cube 1m Cube
Model Scale 100.00% 100.00% 99.90%
Scale Error 0.00% 0.00% -0.10%
Average Scale Error -0.03% (+/- 0.06%)
Table 4: Scale Error Calculation
10
