On a UV light-emitting diode-based sulfur dioxide analyzer and its analysis method

摘要

Sulfur dioxide analyzer, which is based on a UV light-emitting diode, with a UV light-emitting diode, an absorption cell, a spectrometer and a computer connected to the spectrometer; characterized in that the absorption cell is provided on both sides with a UV-transmitting radiation opening and an opposite UV-transmitting radiation opening, the absorption cell being further provided with an air inlet and an air outlet; that the UV light-emitting diode and the radiation opening of the absorption cell are connected by an radiation fiber for supplying the UV light emitted by the UV light-emitting diode to the absorption cell, which is provided on both sides with a coupling element; that the radiation opening of the absorption cell and the spectrometer are connected by a radiation fiber for supplying the UV light from the radiation opening to a UV sensor in the spectrometer, which is also provided on both sides with a coupling element; and that the angle between the radiation opening or the radiation opening and the transmitted UV light path is an acute or obtuse angle, which is approximately ...