Patent ID: 11898841
Assignee: HAMAMATSU PHOTONICS K.K.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. The signal processing method according to claim 10,
wherein a zero optical path difference position of the movable mirror, at which an optical path length on the movable mirror side with which the interference light of the measurement light is caused to occur becomes the same as an optical path length on the at least one fixed mirror side with which the interference light of the measurement light is caused to occur, deviates from a central position of the resonance operation of the movable mirror, and
in the step of performing the intensity acquisition process,
a process of acquiring the addition value of the plurality of first measurement light intensities mutually corresponding for the same number of times, and acquiring the addition value of the plurality of first laser light intensities mutually corresponding for the same number of times is performed as the first intensity acquisition process in a first half or a second half in each of the odd-numbered cycles, and
a process of acquiring the addition value of the plurality of second measurement light intensities mutually corresponding for the same number of times, and acquiring the addition value of the plurality of second laser light intensities mutually corresponding for the same number of times is performed as the second intensity acquisition process in a first half or a second half in each of the even-numbered cycles.