The following is an abstract for the selected article. A PDF download of the full text of this article is available here. Members may download full texts at no charge. Non-members may be charged a small fee for certain articles.
An Electrical Spectrographic Calculator
Volume 14, Number 1 (Feb. 1960) Page 7-11
An electrical circuit based on analog computer principles has been designed that calculates spectrographic results directly from spectral line transmission values. It operates by solving the equation of the working curve of the element under analysis which must be a straight line in the range that includes all the percentage values of interest. If not straight, the intensity ratio of the analysis and standard lines can be calculated and percentage read from the working curve. Corrections for background and variation in emulsion response with wavelength can also simultaneously be included in the calculation.