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During the interaction between dissolved oxygen in water and fluorescent substances, both the fluorescence intensity decreases and the fluorescence lifetime shortens. This fluorescence quenching can be described by the Stern–Volmer equation: Where: I0I_0 — Fluorescence intensity in the absence of oxygen II — Fluorescence…
D. O. Sensor
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To measure the resistance or conductivity of a sample, the current and voltage across the electrodes of a conductivity cell must be measured. Conductance (G) is defined as the reciprocal of resistance: G = 1 / R = I / V The value of conductance depends on the geometry of the electrode plates and is represented by the cell…
Conductivity Sensor
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Uses dual light sources: one channel measures color using a system composed of a light source, photodiode, and quartz window to simulate human visual observation, with algorithms that establish a stable and reliable water color calculation model; the other channel measures water turbidity, applying specific algorithms to…
Chroma Sensor