Patent ID: 11874169
Assignee: HEFEI INSTITUTES OF PHYSICAL SCIENCE, CHINESE ACADEMY OF SCIENCES
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. The method according to claim 8, wherein specific operations of measuring transmittances corresponding to the different frequency components are:
removing the Fabry-Perot in the device, obtaining energy in the first detector of the first receiving unit and the second detector of the second receiving unit, and obtaining an energy ratio N1=energy value of the first detector/energy value of the second detector, wherein N1 is configured as a calibration coefficient; and
after calibration, comparing a relative energy change of a frequency component measured by the first spectrometer of the first receiving unit and a frequency component measured by the second spectrometer of the second receiving unit, and multiplying the relative energy change by the calibration coefficient to obtain a transmittance of a corresponding frequency.