赤外分光器の試作
(I) 検流計を用いたWadsworth Littrow型赤外分光器の試作
1954 年 3 巻 9 号 p. 32-35
詳細
1954 年 3 巻 9 号 p. 32-35
A Wadsworth Littrow type infrared spectrometer using a galvanometer has been built. Prism is a sodium chloride of surace area IIX 8cm and angle 65°. Detector is the thermo-couple which has a long time constant and sensitivity of 3 μV/μW at 760 mmHg.
Wave length of recording spectrum is linear, and slit is automatically opened by a slit cam. As the sensitivity of a galvanometer is 5×10-8 volt, slit must be considerably wide, so the resolution of the spectrometer is not good, nevertheless the 10μ band of ammonia was detected distinctly.
