PARTICULATE DETECTION DEVICE

• Main Author: KISHIMA KOICHIRO
• Format: Patent
• Language: English; Japanese
• Published: 18.05.2017
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To heighten the utilization efficiency of excitation light that is not radiated on to particulates flowing in a passage.SOLUTION: A particulate detection device according to the present disclosure comprises: a first irradiation unit for irradiating a passage in which particulates flow with excitation light and making fluorescent light excited from the particulates; a first separation unit for separating the excitation light and fluorescent light from the light with which the passage is irradiated by the first irradiation unit; a first detection unit for detecting the fluorescent light separated by the first separation unit; a second irradiation unit for irradiating the passage with the excitation light separated by the first separation unit and making fluorescent light excited from the particulates; a second separation unit for separating the excitation light and fluorescent light from the light with which the passage is irradiated by the second irradiation unit; and a second detection unit for detecting the fluorescent light separated by the second separation unit.SELECTED DRAWING: Figure 3 【課題】流路を流れる微粒子に照射されなかった励起光の利用効率を高める。【解決手段】本開示に係る微粒子検出装置は、微粒子が流れる流路に励起光を照射して前記微粒子から蛍光光を励起させる第１の照射部と、前記第１の照射部によって前記流路に照射された光から励起光と蛍光光を分離する第１の分離部と、前記第１の分離部によって分離された蛍光光を検出する第１の検出部と、前記第１の分離部によって分離された励起光を前記流路に照射して前記微粒子から蛍光光を励起させる第２の照射部と、前記第２の照射部によって前記流路に照射された光から励起光と蛍光光を分離する第２の分離部と、前記第２の分離部によって分離された蛍光光を検出する第２の検出部と、を備える。【選択図】図３