Analog-digital meter of analytic peak intensity ratio

An analog-digitat meter of the ratio of the averaged intensities of two analytical lines is described. The ratio measured is drawn to the numerical indicator and is introduced in the computer for further treatment. The structure of the spectrum is visible on the screen of the control oscillograph. The range of measured ratios is from 0.01 to 1.0. For measuring time of 35 s the random error is < or approximately 3%. The device is developed for measuring isotopic ratios in spectral isotopic analysis