Particle density measuring device and its method of measuring the particle mass concentration measuring device and the measurement method, as well as in the fluid in the fluid

摘要

PPROBLEM TO BE SOLVED: To provide an instrument and a method for measuring the density of particle in a fluid enabling measurements which are reduced in errors, even with respect to a fluid wherein a measuring target flows, and to provide an instrument and method for measuring the mass concentration of the particles in the fluid. PSOLUTION: The instrument 1 for measuring mass concentration of the particles in the fluid is equipped with a first light-scattering detector 10 for measuring the intensity of the scattered light of the particles in the fluid; a sizing device 20 for sizing the particles in the fluid passing through the first light-scattering detector 10; a second light-scattering detector 10' for measuring the intensity of the scattered light of the passing particles, after sizing in the fluid passing through the sizing device 20; a filter 40 for collecting the passing particles, after sizing in the fluid passing through the second light-scattering detector 10'; a suction device 50 for allowing the fluid serving as a measurement target, to flow through a route: first light-scattering detector 10sizing device 20second light-scattering detector 10'filter 40 from the outside of the instrument 1 for measuring the mass concentration of the particles; and a computation processing section 60 for performing calculation processings on the density of the particles in the fluid or control of the suction device 50. PCOPYRIGHT: (C)2011,JPO&INPIT