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  5. An application of a least squares method for the identification of oscillatory type measuring devices gain-frequency characteristic

An application of a least squares method for the identification of oscillatory type measuring devices gain-frequency characteristic

Baker Alravashdeh, M.P. Sergienko
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In this article there is suggested a method, which determines both a time constant and a gain-frequency characteristic damp constant for a measuring device, which is simulated by oscillating type dynamic element. The described method is based on a least squares method, which increases an identification accuracy because of obtaining more information about a measuring device performance during a measurement process. The standard uncertainties of both a time constant and a damp constant are analyzed. The recommendations for measuring process, which was mentioned above, optimization are given.
Keywords: measuring device; oscillating type dynamic link; dynamic characteristic; gain-frequency characteristic; standard uncertainty