An IR turbidity sensor: design and application [virtual instrument]

This paper presents an infrared turbidity sensor characterised by a flexible structure that permits the materialisation of different turbidity measurement schemes (transmission, scattering, ratio) in order to increase the measurement accuracy limiting the critical design factors and diminishing the common mode factors. As parts of the work are mentioned the design, implementation, calibration and test of the new turbidity sensor. For an automatic measurement process different "virtual instrument" components are developed and different intelligent processing structures based on neural network and fuzzy systems are implemented in order to obtain the turbidity information.