Alexander Fufaev
My name is Alexander FufaeV and here I will explain the following topic:

Measurement Errors: What Types There Are (+ Examples)

Explanation

Video

In every measurement, there is a certain degree of uncertainty or sources of error that influence the accuracy of the measurement. It is therefore important to know the different types of measurement errors and to eliminate them as far as possible or at least to be aware of them.

Systematic Measurement Errors - these are reproducible measurement deviations, meaning they are predictable / calculable and can be eliminated.

Examples of systematic errors
  • Parallax errors

  • Environmental factors, such as heating and therefore expansion of the measurement object.

  • Error due to model used: for example, using formulas for mathematical pendulum instead of real pendulum (i.e. neglecting the mass of the thread).

Random measurement errors - you can neither calculate these nor somehow eliminate them with better devices. They occur due to fluctuations that cannot be influenced and due to the subjective perception of the observer.

Examples of random errors
  • Read-off error

  • Voltage fluctuations

  • Temperature fluctuations

All these random errors cannot be reproduced with the same measurement setup!