| 摘要 |
PURPOSE:To make it possible to select and indicate a calibration form, by displaying a calibration curve by approximation indicated in a coordinates system selected through a control circuit. CONSTITUTION:CPU2 counts the pulse of a stepping motor for operating a spectrophotometer 1 to convert the same to a wavelength 1 to store the same in memory. In fabricating a calibration curve, CPU2 adheres the kinds and the numbers of a vertical axis and a horizontal axis to CRT3 and displays the same by CRT3 and an operator selects a proper combination to input the combination number thereof from a keyboard 4. CPU2 permits CRT3 to display the concn. and the measuring output of a reference specimen by the indicated combination of coordinates axes. The operator performs the approximate selection of a straight line, a fold line or a curve of secondary degree and displays a calibration curve due to approximation selected through the keyboard 4 by CRT3. |
