公开(公告)号：EP2836805A1

公开(公告)日：2015-02-18

申请号：EP13714427.5

申请日：2013-03-15

Applicant: Chevron U.S.A. Inc.

Inventor： BELLIAN, Jerome Anthony ,  TOLLESON, Christopher Michael

IPC: G01J3/26 ,  G01N21/39 ,  G01J3/02 ,  G01V8/02 ,  G01S17/89

CPC classification number: G01N21/27 ,  G01J3/027 ,  G01J3/26 ,  G01N21/314 ,  G01N21/55 ,  G01S7/4802 ,  G01S17/89 ,  G01V8/02

Abstract: A system for remotely sensing a target material in situ include a broad-band laser source, at least one tunable filter coupled to the source laser for generating a swept-frequency signal an optical device for splitting the swept-frequency signal into a first illumination signal and second illumination signal, a first optical path for directing the first illumination signal unto the target material and receiving a reflected signal from the target material, a second optical path for receiving the second illumination signal and generating a spectral reference signal, and a controller coupled to the first optical path and the second optical path for adjusting the frequency and spatial resolution of the laser source based at least in part on a comparison of the spectral reference signal and the reflected signal.