Abstract
In this paper, we try to solve a problem attached to
the electronic design. When working with sensors, environmental
conditions such as temperature and relative humidity must be
taken into account because they affect the behaviour of the
sensor, and the deviations must be corrected. Often the sensor
manufacturers not provide clearly this information. In many
cases only is provided a graph of the variability of the sensor
according to physical parameters. So the designer has to find
their own method of compensation. In this work is presented a
simple procedure for obtaining mathematical models which
relates the variation of the sensor (in this case resistive) with
physical parameters to be corrected. The procedure could be
extrapolated to any system in which one have to obtain a
mathematical model from a graph. A high degree of resolution
has been achieved considering information provided by the
manufacturer, in the particular case of electrochemical sensors.
