Design of a Calibrated Salinity Sensor Transducer for Monitoring Salinity of Ocean Environment and Aquaculture

In this paper, a calibrated salinity sensor transducer for monitoring salinity of ocean environment and aquaculture is newly proposed. The output signal is a pulse stream, it could be easily sent over a wide range of transmission media, such as package switch network, radio, optical, infrared, and ultrasonic. Another innovation is that the proposed calibration method can reduce the nonlinear error arising from salt sensors. After calibration, measured maximum frequency error is 2.57%. Measurement results have successfully verified all the functions and performance of the proposed calibrated salinity sensor transducer and confirmed it to be applied on the aquaculture of exopalaemon orientis. The proposed calibrated salinity sensor transducer is suitable for measuring salinity devices.