| 摘要 |
PROBLEM TO BE SOLVED: To improve the measurement accuracy of the fine particle amount in a fine particle measurement system.SOLUTION: The fine particle measurement system includes: an ion generation unit for generating ions by corona discharge; an electrification chamber for electrifying fine particles in a gas to be measured; a measurement signal generation circuit for generating a measurement signal correlated with the fine particle amount; a fine particle amount determination unit for determining the fine particle amount; and a particle size estimation unit for estimating the particle size of the fine particles in the gas to be measured. The fine particle amount determination unit performs correction by multiplying the measurement signal or the fine particle amount determined from the measurement signal by a coefficient related to the ratio between the estimated particle size and a reference particle size.SELECTED DRAWING: Figure 11 |
