A method of additional quantities influence correction for nonselective sensors based on a model with variable coefficients

Contemporarily worked out sensors have very wide possibilities of application in various fields of measurements of physical quantities or chemical and biological parameters. However, in spite constructors' efforts, the transfer curve of such sensors usually is considerably nonlinear and sensitivity for additional quantities is significant. To apply such sensors in gas concentration measurement transducers some effective correction methods are required. A simple method based on model with variable coefficients is described in this paper. An example its application to correct influence of temperature and humidity for a gas measuring transducer based on Figaro TGS2442 carbon monoxide sensor is given.