Abstract
Ozone pollution control has become the focus of air pollution control at this stage and even during the 14th Five Year Plan period, so it is more and more important to measure ozone concentration precisely. In this paper, based on the measurement principle of ozone concentration by ultraviolet photometry, the ozone has characteristic absorption of ultraviolet light at 254 nm wavelength, according to Lambert-Biel's law, ozone concentration can be obtained by detecting the change of UV intensity. At the same time a new design of double optical cells and dual detectors is proposed, there is no fluctuation with one source, fast response time under alternating sampling, and the built-in ozone generator is used to achieve multi-point calibration, The test was made according the standard “HJ654-2013”, the test results are far better than the requirements in the standard.
Highlights
Ozone pollution control has become the focus of air pollution control at this stage
ozone concentration can be obtained by detecting the change of UV intensity
there is no fluctuation with one source
Summary
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