How would you assess sensor linearity within a lab measurement setup?

How would you assess sensor linearity within a lab measurement setup?

• A. Apply a range of input values, record output, plot, fit linear model, and quantify nonlinearity error as deviation from the line.
• B. Use a single input value and compare to a reference.
• C. Increase the sampling rate and assume linearity.
• D. Use a high-pass filter on the signal and check phase.

Answer: (A)