Patent ID: 11874230
Assignee: ENDRESS+HAUSER OPTICAL ANALYSIS, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 2:
3. The method according to claim 1, further comprising:
measuring a first value of a secondary property of the sample gas stream during the Raman analysis of the sample gas stream;
calculating a second value of the secondary property of the sample gas stream using: the second amounts of each Raman-visible gas; the amount of the Raman-invisible gas; and reference values for the secondary property of each respective Raman-visible gas and of the Raman-invisible gas;
comparing the measured first value of the secondary property with the calculated second value of the secondary property;
when a difference between the measured value of the secondary property and the calculated value of the secondary property is less than or equal to a difference threshold, indicate the calculated amount of the Raman-invisible gas as verified; and
when the difference between the measured value of the secondary property and the calculated value of the secondary property is greater than the difference threshold, indicate the calculated amount of the Raman-invisible gas as unverified.