A Prediction Model of Humidity Sensor Response
Plamen Nikovski, Nikolay Doychinov · 2021 XXX International Scientific Conference Electronics (ET) · 2021
Many modern algorithms that process sensor information need both current sensor output values and some prediction of these values in future moments. In the current work, an approach to building a predictive low order model of the SHT31-DIS humidity sensor is discussed. Assuming that the sensor can be presented with a standard first-order output error model plus delay, it is shown that the measurements obtained from the sensor can be predicted one step ahead with an error of less than 5%RH. When estimating the parameters of the model, a mean square criterion and measurements traceable to the standard relative humidity scale OIML R 121 were used.