A Feature Direct-Reading Spectrograph

Abstract

Major efforts in spectrochemical systems designs have for years been directed toward total automation. As an illustration of this observation, Fig. 1 shows the first Dow-Baird Direct-Reading Spectrograph which was introduced 17 years ago, and Figs. 2 and 3 show more recent installations of Direct Readers at the Bureau of Standards and at Pensacola Navy Base.