Guidelines for Calculating Measurement Uncertainty of the Interferometric Radius
ISO and NIST provide guidelines for evaluating and expressing the uncertainty of a given measurement, but the application of these guidelines in optical fabrication is not as straightforward as it would seem. Measurements are considered incomplete without a statement of uncertainty thus knowledge of how uncertainty is calculated is essential to understanding the manufacturability of optical components.
This webinar will introduce the guidelines for measurement uncertainty and an example of the uncertainty calculation, i.e. how to calculate a measurement's plus or minus, of the interferometric radius measurement. With knowledge of measurement uncertainty, optical designers can tolerance within manufacturing and metrology limits saving time in the manufacturing process. In addition, with knowledge of the measurement uncertainty, a full system analysis is more accurate when the measurement uncertainty is taken into account.
Kate Medicus Ph.D., Metrologist, Optimax
Who Should Attend
Quality control - People who specify optical components - People who tolerance optical components - People who take or certify measurements - People who qualify optical components
Intermediate: Some experience with optical testing will be assumed
The ISO definition of uncertainty, traceability, accuracy, repeatability, and related terms
How the uncertainty of a interferometric radius measurement is calculated
What can be done to reduce the uncertainty in the interferometric radius measurement