Calibration, True Value and Measurement Error

Calibration, True Value and Measurement Error

1. Instead of having a physical master part, we have a drawing or a digital CAD model

   • Toda la calidad depende de este proceso de calibración.

2. The instruments are then used to set the production machines and to check the parts produced

3. is some uncertainty in your estimate

4. the measurement error

   • Since we can’t know the true value, we also can’t know the error: these are unknowable quantities

5. the world around us is the results of measurements and these always have some uncertainty, even if this uncertainty is very small

6. Modern global supply chains need a different system

7. If I asked you to estimate the height of this text you might say, ‘it’s about 4 mm’. Using the word ‘about’ implies that there