| 摘要 |
PURPOSE:To measure with uniform sensitivity in the measurement of every each wavelength component, by constituting a spectral system so as to rotate many filters on a concentric circle at high speeds and marking the detector into one. CONSTITUTION:Light including the plural wavelength bands is introduced by a collimeter or an optical fiber, etc. and is radiated to a filter wheel 2 arranged plural optical filters 1 passing through each wavelength band on the circumference of a concentric circle in a spectral apparatus. Also, a sensor 4 detecting the position of the filter is provided on one place of the fringe of the wheel 2 and a pulse signal is taken out from the sensor 4 at every one revolution of the wheel 2 and is sent to a sampling gate control circuit 5. Hereby, measurement is performed with uniform sensitivity at the measurement of every each wavelength. |
