公开(公告)号：JP2002202239A

公开(公告)日：2002-07-19

申请号：JP2001318357

申请日：2001-10-16

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ARISTIDE DOGARIU ,  GABRIEL POPESCU

IPC: G01N9/32 ,  G01N15/00 ,  G01N15/02 ,  G01N15/06 ,  G01N21/53

Abstract: PROBLEM TO BE SOLVED: To provide an optical system for monitoring a colloidal suspension. SOLUTION: This system has a chamber for receiving a sample of the suspension while circulating the suspension in a mechanical system, and an interferometer for generating an interference pattern by combining a reference signal, and a signal emitted from the sample showing a characteristic in the suspension.

公开(公告)号：JP2002195930A

公开(公告)日：2002-07-10

申请号：JP2001318356

申请日：2001-10-16

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ARISTIDE DOGARIU ,  GABRIEL POPESCU

IPC: G01N15/02 ,  G01N15/04 ,  G01N21/45

Abstract: PROBLEM TO BE SOLVED: To provide a method for monitoring properties of mixture, an optical system and an interference system for monitoring colloidal suspension, and a method for determining the feature of a particle in the colloidal suspension. SOLUTION: The method includes a step in which a first portion and a second portion of emitting light are formed from a source with the coherence smaller than one, and a step in which the first portion of emitting light passes in a reference path, and the second portion of emitting light passes in a path extending in the mixture, and then an interference light signal is produced by combining the first portion and the second portion of emitting light.

公开(公告)号：JP2002181510A

公开(公告)日：2002-06-26

申请号：JP2001318358

申请日：2001-10-16

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ARISTIDE DOGARIU ,  GABRIEL POPESCU

IPC: G01B9/02 ,  G01B11/14 ,  G01J9/02 ,  G01N15/02

Abstract: PROBLEM TO BE SOLVED: To provide a system of a liquid base containing particles, especially, a system and method for characterizing particles in mixed matter by arranging an interferometer to combine a reference emitting light signal and a sample emitting light signal showing the characteristics of a suspension to form an interference pattern. SOLUTION: The interference system has first, second and third optical fibers and first and second couplers and constituted so that the first coupler receives the emitted light from the first fiber to apply a first emitting part through the second fiber and applies a second emitting part to the second coupler through the third fiber and receives the emitted light from the second coupler and has fourth and fifth optical fibers sending emitted light so as to receive the same by other.

公开(公告)号：JP2002181688A

公开(公告)日：2002-06-26

申请号：JP2001318359

申请日：2001-10-16

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ARISTIDE DOGARIU ,  GABRIEL POPESCU

IPC: G01N15/00 ,  G01B9/02 ,  G01N15/02 ,  G01N15/06

Abstract: PROBLEM TO BE SOLVED: To provide a method for determining the feature of particles in a colloidal suspension while the particles are settling. SOLUTION: The method includes the step of measuring changes in strength between interference patterns produced by combining partially coherent first and second radiation portions while the particles are settling. The first and second partially coherent radiations are derived from the same source; the first portion permeates a portion of the suspension while the second portion permeates a reference path.