title: Inline high frequency ultrasonic particle sizer.
abstract: This paper reports the development of a new method of particle sizing in a liquid. This method uses high frequency focused ultrasounds to detect particles crossing the focal zone of an ultrasonic sensor and to determine their size distribution by processing the reflected echoes. The major advantage of this technique compared to optical sizing methods is its ability to measure the size of particles suspended in an opaque liquid without any dedicated sample preparation. Validations of ultrasonic measurements were achieved on suspensions of polymethyl methacrylate beads in a size range extending from a few micrometer to several hundred micrometer with a temporal resolution of 1 s. The inline detection of aggregate formation was also demonstrated.
authors.affiliation: IEMN, UMR8520 Département d'Opto-Acousto-Electronique, Université de Valenciennes, LeMont Houy, 59313 Valenciennes Cedex, France.
authors.forename: F
authors.initials: F
authors.lastname: Lefebvre
authors.forename: J
authors.initials: J
authors.lastname: Petit
authors.forename: G
authors.initials: G
authors.lastname: Nassar
authors.forename: P
authors.initials: P
authors.lastname: Debreyne
authors.forename: G
authors.initials: G
authors.lastname: Delaplace
authors.forename: B
authors.initials: B
authors.lastname: Nongaillard
mesh_terms: D002138:Calibration; D008853:Microscopy; D010316:Particle Size; D019904:Polymethyl Methacrylate / Q000737:chemistry; D014465:Ultrasonics / Q000295:instrumentation*
chemical_list: D019904:Polymethyl Methacrylate