Summary: Characteristic Curves
The following formulas, which are relevant for the exam, were used in the chapter on characteristic curves:
The offset is the value at which the characteristic intersects the y-axis. It can be a positive or a negative number.
\[
\text{Offset-corrected measured value} = \text{measured value} - \text{offset}
\]
A slope is determined with a slope triangle. For a slope correction, you need the slopes of the real and the ideal characteristic. You correct the characteristic with a factor:
\[
\begin{gathered}
\text{Slope-corrected measured value} = \text{offset-corrected measured value} \cdot \text{factor} \\[6pt]
\text{Factor} = \frac{\text{slope of the ideal characteristic}}{\text{slope of the real characteristic}} \\[6pt]
\text{Slope } m = \frac{y_2 - y_1}{x_2 - x_1}
\end{gathered}
\]