Ultraviolet photometer for ozone concentration measurements

Petr I. Domnin

doi:10.1117/12.163492

2 November 1993 Ultraviolet photometer for ozone concentration measurements

Petr I. Domnin

Proceedings Volume 2047, Atmospheric Ozone; (1993) https://doi.org/10.1117/12.163492
Event: High Latitude Optics, 1993, Tromso, Norway

Abstract

There are several types of instruments that enable us to measure the ozone content in different conditions (in the outdoors, in moving platforms, in industrial buildings, etc.). They operate on the basis of different physical and chemical processes and have different values of parameters such as sensitivity, accuracy, response time, etc. The model of photometer for measuring the ozone concentration is described below. The instrument acts due to selective absorption of UV-radiation by ozone molecule. The distinguishing peculiarity of this device is the use of radioluminescent source (RLS) with very high long-term temporal emission stability instead of the generally used unstable mercury lamp. The RLS emission power is 3 (DOT) 10¹¹ quantum/s. Three subsystems (optical, gas-flow, and electronic) making up this photometer are described in detail. The approximate estimates of photometer threshold sensitivity and accuracy are made and the possible means for improving these parameters are outlined.

Citation Download Citation

Petr I. Domnin "Ultraviolet photometer for ozone concentration measurements", Proc. SPIE 2047, Atmospheric Ozone, (2 November 1993); https://doi.org/10.1117/12.163492

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