Abstract: The present relates to a measurement device (1) for the detection and/or measurement of particles in a fluid, the measurement device comprising a fluid source (11) for producing a flow of fluid (111) along a fluid flow path, a first laser source (12) positioned for emitting a first laser beam (120) of laser light in a measurement volume of the fluid flow path for light scattering; a scattered light detecting means (13) for detecting a presence of a particle in the fluid flow path through detection and measurement of laser beam light scattered on different angles by said particle, wherein it further comprises a second laser source (14) positioned for emitting a second laser beam (140) of laser light in said measurement volume of the fluid flow path for Raman and fluorescence excitation; a Raman and fluorescence detecting means (15) for detecting a Raman scattering signal emitted by the fluid and a Fluorescence signal emitted by said particle upon excitation by said second laser beam (140).

Abstract: Measurement device and methods for the detection and/or analysis of fluid-borne particles. The measurement device comprises a means for producing a flow of fluid along a fluid flow path, a laser positioned for emitting a beam of laser light in a measurement volume of the fluid flow path; a lens set for collecting laser light scattered in the measurement volume by fluid-borne particles contained in the flow of fluid; a multipixel photo-detector positioned for detecting scattered laser light collected by the lens set. The lens set is configured for focusing the scattered light in a line being perpendicular to a flow direction (y) of the flow of fluid and at a focal distance of the lens set. The multipixel photodetector is positioned at a distance from the focal distance of the lens set and oriented with its longitudinal axis parallel to the line.