| 摘要 |
A standard characteristic which is an average characteristic of multiple samples is approximated in a polygonal-line fashion by first to third lines 315a, 325a, and 335a. The coordinate-point positions of the first and second lines at comparison adjustment points are stored as standard data in a data memory of an electronic control apparatus. An actual-product characteristic as a calibration target is approximated in a polygonal-line fashion by first to third lines 315b, 325b, and 335b. The resistance value of a first label resistor is adjusted to a value corresponding to ratios (V10n/V10, V20n/V20) of monitoring outputs. The resistance value of a second label resistor is adjusted to a value corresponding to ratios (V30n/V30, V40n/V40) of monitoring outputs. The electronic control apparatus reads the resistance values of the label resistors, combines them with the stored standard characteristic, and interpolates a third line portion, thereby restoring and generating the actual-product characteristic. |
