PARTICLE DETECTING DEVICE AND PARTICLE DETECTING METHOD

摘要

A particle detecting device includes: a light source that illuminates a fluid with an excitation beam, a fluorescent intensity measuring instrument that measures an optical intensity of a fluorescent band, generated in a region illuminated by the beam, at two or more wavelengths; a reference value storing device that stores a value, as a reference value for a particle, based on an intensity of light emitted from a specific particle illuminated by the beam, measured at the two or more wavelengths; a correcting portion that corrects the reference value or a measured value for the intensity of light in accordance with the status of the light source and/or a fluorescent intensity measuring instrument; and an evaluating portion that compares the measured and reference values, of which at least one has been corrected, and evaluates whether the fluid includes the fluorescent particle that is a subject for detection.

主权项

1. A particle detecting device comprising:
a light source that illuminates a fluid with an excitation beam; a fluorescent intensity measuring instrument that measures an optical intensity of a fluorescent band, generated in a region that is illuminated by the excitation beam, at two or more wavelengths; a reference value storing device that stores a value, as a reference value for a particle, based on an intensity of light emitted from a specific particle illuminated by the excitation beam, measured at the two or more wavelengths; a correcting portion that corrects the reference value or a measured value for the intensity of light in accordance with the status of at least one of the light source and a fluorescent intensity measuring instrument; and an evaluating portion that compares the measured value and the reference value, of which at least one has been corrected, for the intensity of light, and evaluates whether or not the fluid includes the fluorescent particle that is a subject for detection.