Correction of the dynamic error of inertial detectors for gas analysis

The method of dynamic error correction for thermal conductivity inertia detector with a transfer function having the form of the first order aperiodic element. The method is based on the realization of the inverse function operator describing inertia detector in a dynamic mode. Correction method uses a parabolic spline - approximation of discrete signal detector values, as well as its first derivative. An example of correction of the signal formed by the thermal conductivity detector of a particular type is described. It is shown that the use of a mathematical correction method based on digital filter in-line processing of discrete signal values allows to reduce in several times the dynamic error of inertia detector. It is proposed to use the method described above also for the correction of the signal detector, the operator of which having the form of the second order element. The considered method can be easily implemented using modern microprocessor measuring systems.