Patent ID: 11953427
Assignee: ENDRESS+HAUSER OPTICAL ANALYSIS, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. A method as in claim 9, wherein the wavelength/frequency calibrator is moveable such that the wavelength/frequency calibrator can be positioned along at least part of a beam of light emitted by the light source such that the at least part of the beam passes through the wavelength/frequency calibrator and on to a detector for characterizing intensity changes resulting from interaction of the at least part of the beam with the wavelength/frequency calibrator, and such that the wavelength/frequency calibrator can be positioned away from the at least part of the beam such that the at least part of the beam is directed through the sample fluid and on to the detector for characterizing intensity changes resulting from interaction of the first portion with the sample fluid, which are recorded in the field spectrum.