| 摘要 |
In a measurement system, by suppressing the environmental changes of counter-flow of air, and temperature changes and the like, measurement can be accomplished with stable high precision and replication, and by providing a transparent cell 2 which stores a particles dispersed in a dispersion medium, and a light source which irradiates light onto the particles within the transparent cell 2, and multiple light detectors 5 scattered and arranged to detect the intensity of diffracted/scattered light produced by the irradiation of light, and a computer device 6 which calculates the particle size distribution of the particles based on the light intensity signal output from the light detectors 5, in addition to the establishment of cell storage space S which stores the transparent cell 2 and the equipment storage spaces S1 and S2 which store the light source 41a, the light detector 5, and the optical device 6, the equipment storage spaces S1 and S2 are given tight closed construction separate from the cell storage space S.
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