Independent Metrology Validation
When measurement results drive manufacturing decisions, the mathematics behind those results matters.
MTL Precision evaluation algorithms have been independently verified by the Physikalisch-Technische Bundesanstalt (PTB) National Metrology Institute of Germany and meet the requirements for calibration and testing laboratories under DIN EN ISO/IEC 17025.
PTB is Germany’s National Metrology Institute and the country’s highest technical authority for metrology. Its role sits at the top of Germany’s metrological hierarchy, maintaining and disseminating measurement units in accordance with the International System of Units (SI).
This independent validation of MTL Precision software algorithms demonstrates confidence that the mathematical foundation used to evaluate measured geometry in MTL Precision systems has been tested against an internationally respected metrology authority.
MTL Precision's evaluation software uses Gaussian least-squares fitting to calculate best-fit geometry from measured coordinate data.
MTL Precision software evaluation passed independent PTB testing, with all tested algorithm deviations below 0.50 µm for location and size and below 1.00 µrad for orientation and angle.
In simple terms:
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Our sensors collect data.
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Our software turns that data into measurements.
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PTB independently validates the mathematics behind our evaluation.
Why
Least-Squares Evaluation Matters
Real measurement data is never mathematically perfect.
When a measurement system collects hundreds or thousands of points from a manufactured surface, those points contain small variations caused by the actual part geometry as well as the measurement process.
Least-squares evaluation determines the geometric feature that best represents the complete measured dataset by minimizing the combined squared deviations between the measured points and the calculated geometry.
Correct implementation of these algorithms is critical because even high-quality measurement data can produce incorrect dimensional results if the underlying evaluation mathematics are wrong.
MTL Precision software evaluation passed independent PTB testing, with all tested algorithm deviations below 0.50 µm for location and size and below 1.00 µrad for orientation and angle.
44 datasets
6 geometric feature types
PTB reference values
MLT Precision calculations
<0.50 µm — Location & Size
<1.00 µrad — Orientation & Angle
Why
External Validation Matters
Independent software verification adds confidence to your measurement results.
44 data sets. 50 points per set. 6 geometric features. For every tested characteristic, MTL Precision passed.
Built for Manufacturers Who Need Defensible Measurement Data
For aerospace, energy, and precision-manufacturing applications, measurement results must do more than appear on a screen.
They must be repeatable.
They must correlate.
They must be technically defensible.