公开(公告)号：GB2513343A

公开(公告)日：2014-10-29

申请号：GB201307338

申请日：2013-04-23

Applicant: UNIV SINGAPORE

Inventor： HUANG ZHIWEI ,  BERGHOLT MADS SYLVEST ,  ZHENG WEI ,  HO KHEK YU ,  YEOH KHAY GUAN ,  DURAPAIPANDIAN SHIYAMALA

IPC: G01N21/65 ,  G01J3/44

Abstract: A method of calibrating a fibre-optic Raman spectroscope system 20 comprising a laser source 21, a spectroscope 30 and a fibre-optic probe 11 to transmit light from the laser source to a target and return scattered light to the spectroscope, comprises transmitting light from the laser source to a standard target having a known spectrum, recording a calibration spectrum of the scattered light from the standard target, comparing the known spectrum and the calibration spectrum and generating a transfer function, and storing the transfer function. The transfer function is then used on further spectral measurements using the spectroscope system. A method of estimating laser power in the system and a method of subtracting a background signal from a Raman spectrum is also disclosed.