By Fred Schenkelberg
When we make a measurement, we make a decision based on the data provided. It’s important to have data that is close enough to the actual measurement. If something is supposed to be 2 cm long and we measure it at 2.1 cm, what is the measurement error?
Every measurement device includes some amount of error. Of course, some measurement systems are better than others. Selecting and trusting a measurement process benefits from understanding the types of errors possible, and measuring the amount of error that occurs.
Let’s discuss the process of measuring a measurement system. Just an introduction to the basic types of measurement errors and a common way to quickly identify if you need to improve your process or approach to making a specific measurement.