	US 11,927,518 B2
	Method for determining a sedimentation or creaming rate
Bruno Beche, Rennes (FR); Hervé Lhermite, Cesson Sevigne (FR); Véronique Vie, Rennes (FR); and Lucas Garnier, Rennes (FR)
Assigned to UNIVERSITE DE RENNES 1, Rennes (FR); and CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), Paris (FR)
Appl. No. 16/966,416
Filed by UNIVERSITE DE RENNES 1, Rennes (FR); and CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), Paris (FR)
PCT Filed Jan. 17, 2019, PCT No. PCT/EP2019/051103 § 371(c)(1), (2) Date Jul. 30, 2020, PCT Pub. No. WO2019/149530, PCT Pub. Date Aug. 8, 2019.
Prior Publication US 2020/0363307 A1, Nov. 19, 2020
Int. Cl. G01N 15/05 (2006.01); G01N 33/86 (2006.01)

CPC G01N 15/05 (2013.01) [G01N 2015/055 (2013.01)]

2 Claims

1. A system for determining a rate of sedimentation or of creaming of a mixture in suspension, wherein the system comprises:

a photonic microresonator configured to receive a sample of a liquid in suspension,

an emitter of a first optical signal configured to emit at the input of the photonic microresonator,

a module for acquiring and recording a second optical signal, delivered at the output of the microresonator carrying the sample of the mixture in suspension, and

a module for determining information representing a rate of sedimentation or of creaming of the mixture in suspension from the recorded second optical signal, by successive iterations of spectral analysis of the second optical signal.