Ozone detectors utilize various detection principles, including semiconductor (E2V, UK), electrochemical, and ultraviolet (UV) light methods. This section primarily focuses on the third method: UV light.
The mathematical model for ozone concentration is derived from Lambert and Beer's law. In this formula, knowing the sample current, sampling current, and the distance to the ozone absorption cell allows for the calculation of the ozone concentration. Due to the distance limitation of the ozone absorption cell, the maximum measurable ozone concentration is only 300 O3 g/m³.
The detector mainly consists of a low-pressure UV lamp, a light filter, an incident UV reflector, an ozone absorption cell, a sample photoelectric sensor, a sampling photoelectric sensor, an output display, and circuit components.
Ozone detectors are primarily used in ozone preparation workshops (ozone generators, ozone plants, etc.), chemical, petroleum, paper, textile, pharmaceutical and fragrance industries, water treatment, and food and pharmaceutical sterilization workshops.
