Research object: measuring processes of strain gauge bridges output signals that are in the dynamic modes operations of electric measuring transformers. Research purpose: increase of accuracy of electric measuring transformers of strain gauge bridges in the dynamic modes of operations at the limited volume of a priori information about a strain gauge bridges signal, by the correction of dynamic errors with method that is based on the use of wavelet-transform. Research methods and apparatus: methods of analysis and synthesis of the systems, that are used for the decision of tasks of increase of exactness of measuring of electric signals in the dynamic modes; methods of theories of reverse tasks, wavelet-transform, approximation and systems of automatic control; methods of measuring of electric sizes, spectrology, digital treatment of signals, treatment of results of the direct measuring, imitation design. Novelty: mathematical expression is first offered for the construction of operator of correction of dynamic errors of measuring of signals of strain gauge bridges, maximum which allows to choose wavelet, with the use of which minimum root-mean-square error of measuring of signal is arrived at without the loss of firmness of operator of correction; the method of suppression of noise is improved during the correction of dynamic errors of measuring of signals of strain gauge bridges, which, unlike existing, consists in the use of "oversoft" threshold treatment of wavelet-coefficients of decoupling of signal with the adaptive choice of parameter which regulates the size of threshold, and allows to repress noise at the limited information about a signal from strain gauge bridges; the method of correction of dynamic errors of electric VP got subsequent development strain gauges, that is based on the use of vehicle of wavelet-transform, which, unlike existing, consists in that carries out a correction on the stage of reconstruction of signal from wavelet-coefficients, allows to adapt the operator of correction to the features of the processed signal, determine the level of present in a signal noise in the process of treatment, to delete him from a signal, and, the same, to attain the minimum possible error of his measuring; the estimations of influence of error of authentication of dynamic model of electric measuring transformer of strain gauge bridges are got on the root-mean-square error of the adjusted signal and it is showed that an operator of correction is not sensitive to this error. Degree of introduction: the "Aviation scientific and technical complex the named after Antonov"; Test center of planning and design office of "Kryukov carriage engineering factory"; educational process of department of aviation devices and measurings of the National aerospace university the name after Zhukovskiy "KHAI". Sphere (industry) of the use: measuring of signals of strain gauge is in the dynamic modes.
