Calibration Pyramid

If you look at the accuracy of each of the standards in this calibration pyramid, you'll notice that the increase in accuracy from one step to another is 10 to 1.

This increase is known as the accuracy ratio. Metrologists like to see calibration systems with accuracy ratios of 10 to 1 between levels.

However, this high a ratio is often hard to achieve, especially in higher levels of the pyramid.

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