| 摘要 |
PROBLEM TO BE SOLVED: To attain calibration in a fine particle measurement system.SOLUTION: A fine particle measurement system includes: a measurement signal generation circuit for outputting a measurement signal correlating with a fine particle amount in the exhaust gas of an internal combustion engine; a fine particle amount determination part for determining the fine particle amount based on the measurement signal; a signal receiving part for receiving a predetermined signal showing that a state relating to the internal combustion engine is in a predetermined state where the fine particle amount is considered to be a known amount; and a calibration execution part for correcting either the deviation of the measurement signal when the fine particle amount is the known amount or the deviation of the fine particle amount specified based on the measurement signal when the fine particle amount is the known amount. The calibration execution part executes the calibration when the predetermined signal is received by the signal reception part.SELECTED DRAWING: Figure 6 |
