公开(公告)号：US20240110874A1

公开(公告)日：2024-04-04

申请号：US17937141

申请日：2022-09-30

Applicant: Endress+Hauser Optical Analysis, Inc.

Inventor： Joseph B. Slater ,  James M. Tedesco

IPC: G01N21/65

CPC classification number: G01N21/65 ,  G01N2201/12746

Abstract: A calibration reference for a multipass Raman analysis system, wherein a combination excitation and collection beam passes through a focal point F0 within a sample volume multiple times, is provided. The calibration reference includes a body of material having a known spectral response when illuminated by the combination excitation and collection beam. The size or shape of the body is selected or modified to keep the focal point at F0 within the body when the body is positioned within the sample volume for calibration purposes.

公开(公告)号：US12174122B2

公开(公告)日：2024-12-24

申请号：US17937141

申请日：2022-09-30

Applicant: Endress+Hauser Optical Analysis, Inc.

Inventor： Joseph B. Slater ,  James M. Tedesco

IPC: G01N21/65

Abstract: A calibration reference for a multipass Raman analysis system, wherein a combination excitation and collection beam passes through a focal point F0 within a sample volume multiple times, is provided. The calibration reference includes a body of material having a known spectral response when illuminated by the combination excitation and collection beam. The size or shape of the body is selected or modified to keep the focal point at F0 within the body when the body is positioned within the sample volume for calibration purposes.