Patent AT-E401558-T1: [Translated] CALIBRATION OF AN OPTICAL FMCW BACKSCATTER MEASUREMENT SYSTEM
Description
The object of the invention is to provide a method of calibrating an optical FMCW backscattering measurement system that improves the precision of the measurement. The problem is solved by a method comprising the steps of A. Converting said received sensor signal to a complex received electrical signal as a function of said modulation frequency fm, said complex received electrical signal being represented by a magnitude part and a phase angle part as a function of said modulation frequency fm; B. Performing a transformation of said received electrical signal to provide a backscattering signal as a function of location between said first and second ends of said sensor and beyond said second end; C. From said backscattering signal as a function of location determining characteristics of a curve representative of said backscattering signal beyond said second end; D. Correcting said magnitude part of said received electrical signal and said phase angle part of said received electrical signal in a predetermined dependence of said curve; and E. Repeating step B) on the basis of the corrected received electrical signal.
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Access the complete Patent AT-E401558-T1: [Translated] CALIBRATION OF AN OPTICAL FMCW BACKSCATTER MEASUREMENT SYSTEM on the official website. |
https://pubchem.ncbi.nlm.nih.gov/patent/AT-E401558-T1 |
Tags
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- chemistry
- research
- innovation
- pubchem