HEIDENHAIN QUADRA-CHEK 2000 User Manual

Settings | Features
Error limit filter
The Error limit filter specifies the maximum permitted deviation per measuring
point.
Deviation = orthogonal distance to the feature
1
Figure 93: Schematic representation of the form with
point cloud and deviations
1
Maximum permissible deviation
Confidence interval (±xσ) filter
± 1 sigma
± 2 sigma
Figure 94: Schematic representation of the confidence interval
Normal distribution is assumed with dispersion of the deviations. The mean value
corresponds to the average of all deviations.
The Confidence interval (±xσ) filter limits a range that must be included in the
calculation. The limits of the confidence interval correspond to the standard
deviation (Sigma) multiplied by the Sigma factor:
Confidence interval = Sigma factor * Sigma
Entering the Sigma factor into the Confidence interval (±xσ) field influences the
width of the confidence interval.
Example: If you select Sigma factor 2, the confidence interval includes almost 95
% of all values.
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HEIDENHAIN | QUADRA-CHEK 2000 | Operating Instructions | 07/2019
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HEIDENHAIN QUADRA-CHEK 2000 Specifications

General

Brand	HEIDENHAIN
Model	QUADRA-CHEK 2000
Category	Measuring Instruments
Language	English