Papers by Keyword: Calibration Interval

Abstract: For realizing the dynamic optimization of measuring instrument calibration interval, predicting the history calibration data by modeling. First the improved moving average method is used to modeling and to predict the development trend of parameters. On the basis of this, BP network is used to compensate the predicted residual sequence, so as to get more accurate forecasts. Then improved MA - BP prediction model is given to optimize the calibration interval dynamically. The model is verified through experiments. The results show that the model has higher prediction precision and better universality.

Abstract: Sensor devices with metrological self-check represent one of the most advanced directions in the present-day development of measurement technique. Generally, in the process of sensor device operation, results of the metrological self-check enable changes of metrological characteristics to be revealed, automatic correction of an error to be performed, grounds for multiple increase of a calibration interval to be obtained. In the present paper an additional procedure of metrological assurance is substantiated which provides the increase in the reliability of metrological self-check results.

Abstract: A number of new problems of measurement assurance of computerized measuring instruments at the stage of development, production and operation stages are discussed. Possible solutions are outlined taking into account the experience of the D.I. Mendeleyev Institute for Metrology.