Concept 39 of 42 · Applications and Instrumentation

Sensor calibration and uncertainty budgets

A credible sensor must quantify systematic as well as statistical uncertainty.

01 / Mathematical framework
$$u_c^2=\sum_i(\partial f/\partial x_i)^2u_i^2$$

Physical intuition

A credible sensor must quantify systematic as well as statistical uncertainty.

Deep dive: physical mechanism

Propagate calibration constants, offsets, environmental variables and estimator variance into a combined uncertainty.

What is measured experimentally?

Produce traceable confidence intervals and repeatability plots.

Assumptions, noise and limitations

Correlated errors require covariance terms, not only independent variance sums.

Research and simulation exercise

Construct an uncertainty budget for a magnetometer.

Connect the ideas

Explore the chapter overview, learning path, and references.

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