| 摘要 |
PURPOSE:To make the relationship between the wavelength and time of a spectroscope linear, by providing a rest period for every driving of a diffraction grating at a specified angle, and changing the length of the rest period as the function of the angle of the diffraction grating. CONSTITUTION:Light from a light source L is inputted to a light detector P through a spectroscope 3 and a sample container S. The output signal is written into a computer 4 through a preamplifier A1 and an A/D converter AD. A pulse motor driving circuit 6 receives a command from the computer 4 and outputs driving pulses to the pulse motor M. A diffraction grating G is driven by the pulse motor M. At this time, a rest period is provided at every time the diffraction grating G is driven by a specified angle. The length of the rest period is changed as the function of the diffraction grating G. Thus the relationship between the wavelength and time of the spectroscope 3 is made linear. |
