What is it about?
A balance is, essentially, a six dimensional load cell. Each load dimension has it's own non-linear calibration. The accuracy of each load varies depending on what the values of all six loads are. It is therefore a problem when it comes to evaluating a balance's accuracy, or even declaring that a balance has been correctly installed and is functioning "as expected". This paper introduces an approach that is an alternative, (or extension), to evaluation through the application of a number of known loads to a balance followed by the application of statistically derived metrics which are taken from the original balance calibration data.
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Why is it important?
Any knowledge regarding the precision and accuracy of an instrument is important. This knowledge leads to improved instrument selection, improved understanding/interpretation of test results, and is the mechanism which enables the process of continual improvement.
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This page is a summary of: Balance Evaluation and Installation-Checks using Dead Weight Roll- and Pitch-Polars, January 2017, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/6.2017-0774.
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