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Technical Data TPS1200 213
Distance
measuring
program Averaging
In the distance measuring program Averaging, the following values are displayed:
D Slope distance as arithmetic mean of all measurements
s Standard deviation of a single measurement
n Number of measurements
These values are calculated as follows:
Slope distance as arithmetic mean
of all measurements
Σ Sum
D
i
Single slope distance measure-
ment
n Number of measurements
s Standard deviation of a single slope
distance measurement
Σ Sum
Slope distance as arithmetic mean
of all measurements
D
i
Single slope distance measure-
ment
n Number of distance measurements
TPS12
_
061
· ∑ D
i
D =
1
n
n
i = 1
TPS12_062
s =
(D
i
- D)
2
n - 1
=
D
i
2
-
n - 1
( D
i
)
2
∑
n
i = 1
∑
n
i = 1
∑
n
i = 1
1
n