| 摘要 |
FIELD: physics. ^ SUBSTANCE: in method light flux from radiation source is supplied to photodetector with red luminophor at inlet window. At that difference of photocurrents is measured, which are initiated by light flux with cut and uncut UV radiation of source. Analyser comprises mercury lamp of low pressure, gas cuvette with quartz windows connected to generator of mercury atomic vapour, photodetector and indicator of atomic absorption. Radiation of mercury lamp is supplied directly to cuvette window, and after outlet from it - to photodetector with red luminophor at photodiode window. Analyser is manufactured according to double-beam circuit with channel for compensation of mercury lamp noise. ^ EFFECT: increased sensitivity and reduced error of mercury definition. ^ 9 cl |
