公开(公告)号：US09557220B2

公开(公告)日：2017-01-31

申请号：US14423765

申请日：2013-08-26

Applicant: Osaka University

Inventor： Takeshi Yasui ,  Mamoru Hashimoto ,  Tsutomu Araki ,  Yuki Iyonaga

IPC: G01J3/453 ,  G01N21/3581 ,  G01J3/28 ,  G01J3/42 ,  G01N21/35 ,  G01N21/3586 ,  G01J3/02

CPC classification number: G01J3/453 ,  G01J3/2889 ,  G01J3/42 ,  G01J2003/0281 ,  G01J2003/283 ,  G01N21/3581 ,  G01N21/3586 ,  G01N2021/3595

Abstract: Provided is a Fourier transform spectroscopy method that removes restrictions on spectral resolution and spectral accuracy in Fourier transform spectroscopy for observing a cyclic repeating phenomenon, that realizes, theoretically, infinitesimal spectral resolution accuracy. After accurately and sufficiently stabilizing the repetition period of a phenomenon, a temporal waveform is acquired by making a repetition period and a time width for observing the temporal waveform of a phenomenon strictly conform, and by performing a Fourier transform, acquired is a discrete separation spectrum in which the inverse number of the observation time window size T is made a frequency data gap. Measurement is repeated while causing the repetition period to change, and the gap of the discrete separation spectrum is supplemented. Thereby, in a case of an observation target in which the existence time of a phenomenon is longer than the repetition period, the spectral resolution of the obtained discrete separation spectrum becomes infinitesimal.

Abstract translation: 提供了傅里叶变换光谱法，其消除了用于观察循环重复现象的傅里叶变换光谱中的光谱分辨率和光谱精度的限制，从理论上实现了无穷小的光谱分辨率精度。 在精确而充分地稳定现象的重复周期之后，通过使重复周期和用于观察现象的时间波形严格符合的时间宽度获得时间波形，并且通过执行傅里叶变换获得离散分离频谱 其中观测时间窗口大小T的倒数成为频率数据间隙。 在重复周期变化的同时重复测量，并补充离散分离光谱的间隙。 因此，在现象的存在时间长于重复周期的观察目标的情况下，所得到的离散分离光谱的光谱分辨率变得无穷小。

公开(公告)号：US20150204722A1

公开(公告)日：2015-07-23

申请号：US14423765

申请日：2013-08-26

Applicant: Osaka University

Inventor： Takeshi Yasui ,  Mamoru Hashimoto ,  Tsutomu Araki ,  Yuki Iyonaga

IPC: G01J3/453 ,  G01J3/28

CPC classification number: G01J3/453 ,  G01J3/2889 ,  G01J3/42 ,  G01J2003/0281 ,  G01J2003/283 ,  G01N21/3581 ,  G01N21/3586 ,  G01N2021/3595

Abstract: Provided is a Fourier transform spectroscopy method that removes restrictions on spectral resolution and spectral accuracy in Fourier transform spectroscopy for observing a cyclic repeating phenomenon, that realizes, theoretically, infinitesimal spectral resolution accuracy. After accurately and sufficiently stabilizing the repetition period of a phenomenon, a temporal waveform is acquired by making a repetition period and a time width for observing the temporal waveform of a phenomenon strictly conform, and by performing a Fourier transform, acquired is a discrete separation spectrum in which the inverse number of the observation time window size T is made a frequency data gap. Measurement is repeated while causing the repetition period to change, and the gap of the discrete separation spectrum is supplemented. Thereby, in a case of an observation target in which the existence time of a phenomenon is longer than the repetition period, the spectral resolution of the obtained discrete separation spectrum becomes infinitesimal.

Abstract translation: 提供了傅里叶变换光谱法，其消除了用于观察循环重复现象的傅里叶变换光谱中的光谱分辨率和光谱精度的限制，从理论上实现了无穷小的光谱分辨率精度。 在精确而充分地稳定现象的重复周期之后，通过使重复周期和用于观察现象的时间波形严格符合的时间宽度获得时间波形，并且通过执行傅里叶变换获得离散分离频谱 其中观测时间窗口大小T的倒数成为频率数据间隙。 在重复周期变化的同时重复测量，并补充离散分离光谱的间隙。 因此，在现象的存在时间长于重复周期的观察目标的情况下，所得离散分离光谱的光谱分辨率变得无穷小。