Abstract: The measurement processes of water quality parameters are complicated and tedious. In order to solve the problem of lacking multi-parameter and portable equipment in the field of environmental protection and aquaculture, a hand-held multi-parameter water quality detector based on optical technology was developed, which can realize the rapid measurement of COD, turbidity, chrominance and other parameters in water according to the principle of light absorption and scattering in the water sample. The detector has designed a highly integrated optical structure, easy to carry, and can realize the rapid measurement of multi-parameters in water.
Key words: COD; turbidity; chrominance; measurement; optics; multi-parameter