The precise measurement of the wavelengths of emission or absorption bands on spectrographic plates is a vexing and difficult problem. The usual commercial microphotometer when coupled with a strip chart recorder does not give accurate results because the rate of plate travel is not constant. This error may be traced ultimately to the plate drive mechanism which operates by means of a screw or by means of a friction clutch arrangement.
G. Dana Johnson, "Wavelength Determinations on Ebert Plates," Appl. Spectrosc. 31, 565-566 (1977)
References are not available for this paper.
OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.