D0 dissolved oxygen sensor

The core of this water dissolved oxygen sensor adopts advanced fluorescence quenching principle, relying on the optical characteristics of specific fluorescent substances to achieve accurate detection of dissolved oxygen. Its working mechanism is clear and efficient: the sensor probe surface is coated with a dedicated fluorescent sensitive layer. When excitation light of a specific wavelength is irradiated on the fluorescent layer, the fluorescent substance will absorb energy and emit fluorescence. The dissolved oxygen molecules in water will interact with the fluorescent substance, causing the fluorescence signal to be quenched, and the degree of quenching is linearly proportional to the concentration of dissolved oxygen in water. The device accurately captures the intensity changes of fluorescence signals, and after internal intelligent algorithm calibration and signal processing, it can quickly and accurately output dissolved oxygen concentration data in water. Compared with traditional detection principles, this technology does not rely on chemical reactions, has faster detection response speed, higher measurement accuracy, and is minimally affected by interference factors such as water turbidity and temperature.