Development of turbidity sensor modules and benchmark testing from biomimetic underwater robots

The turbidity has been classified as a basic item to measure water quality. This research team has developed a small turbidity sensor module to measure permanent turbidity based on moving objects that may freely swim on or under the water. This paper describes benchmark test results of the 2 channel turbidity sensor module with problems improved from the existing turbidity sensor module and the commercial products. The 2 channel turbidity sensor module not only has acquired the authorized test report issued by the Korea Testing Laboratory but also showed the performance within acceptable range of error at water quality under 8NTU comparing to the commercial products.