Conclusions
1. In determining derivatives from the increments of the argument and function in analog-digital measuring systems, the error may attain large values, even for precise measurement of the variables. 2. When it is impossible to smooth out errors at the function quantization points, it is advisable to determine the derivative by first differentiating the function in analog form.
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Literature cited
M. Altwein and H. Finkenrath, J. Phys. Sci. Instrum.,6, No. 8 (1973).
G. Ya. Mirskii, Machine Determination of Random Errors [in Russian], 2nd ed., énergiya, Moscow (1972).
Additional information
Translated from Izmeritel'naya Tekhnika, No. 6, pp. 20–21, June, 1978.
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Vsevolozhskii, L.A. Error in determining the derivative in analog-digital measurements. Meas Tech 21, 762–763 (1978). https://doi.org/10.1007/BF00823545
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DOI: https://doi.org/10.1007/BF00823545