公开(公告)号：DE69904680T2

公开(公告)日：2003-11-13

申请号：DE69904680

申请日：1999-08-23

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CARASSO MELANIE ,  PATEL SANJAY ,  VALDES JORGE LUIS ,  WHITE CHRISTOPHER ALAN

IPC: B01J8/00 ,  G01N15/02 ,  G01N15/06 ,  G01N29/11 ,  G01N29/42 ,  G01N29/46 ,  G01N29/02 ,  G01N21/47

Abstract: The invention provides an improved process for determining the characteristics of dispersed particles. The process involves directing waves (acoustic or light) into a dispersion, and measuring the attenuation of the waves for particular frequencies to provide an attenuation spectrum. The measured attenuation spectrum is then compared to a set of theory-based calculated attenuation spectra to determine the particle size distribution corresponding to the measured attenuation spectrum. Unlike previous processes, the particle size distribution is capable of being accurately determined by a single inversion algorithm, thus eliminating burdensome steps of previous methods.

公开(公告)号：DE69904680D1

公开(公告)日：2003-02-06

申请号：DE69904680

申请日：1999-08-23

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CARASSO MELANIE ,  PATEL SANJAY ,  VALDES JORGE LUIS ,  WHITE CHRISTOPHER ALAN

IPC: B01J8/00 ,  G01N15/02 ,  G01N15/06 ,  G01N29/11 ,  G01N29/42 ,  G01N29/46 ,  G01N29/02 ,  G01N21/47

Abstract: The invention provides an improved process for determining the characteristics of dispersed particles. The process involves directing waves (acoustic or light) into a dispersion, and measuring the attenuation of the waves for particular frequencies to provide an attenuation spectrum. The measured attenuation spectrum is then compared to a set of theory-based calculated attenuation spectra to determine the particle size distribution corresponding to the measured attenuation spectrum. Unlike previous processes, the particle size distribution is capable of being accurately determined by a single inversion algorithm, thus eliminating burdensome steps of previous methods.