PROCESSING OF THE OBSERVATION RESULTS FOR NON-ELECTRICAL MEASUREMENT DEVICES BY RUNGE-KUTTA METHOD
Abstract
Based on analyzing the Runge-Kutta approximation method, the author proposes a method of looping the values of non-electrical measurement devices to improve the accuracy of the processing of observational results. The algorithm was built to calculate the measurement results with digital data from the analog-digital converter, which was iteratively computated according to the Runge-Kutta method of order 4, thereby detecting the error and correcting the displayed value.The efficiency of reducing errors of the algorithm which was verified by examining a test pressure measurement device with direct result calculation modes to compare with the result processing mode by the Runge-Kutta method confirms the correctness of the proposed solution.
References
Vũ Quý Điềm, Phạm Văn Tuân, Đỗ Lê Phú, “Cơ sở kỹ thuật đo lường điện tử”, 2001, Nhà xuất bản Khoa học & Kỹ thuật.
Phạm Ngọc Thắng, “Giảm sai số trong phép đo các đại lượng cơ-nhiệt bằng nội suy và biến đổi lặp”, Luận án Tiến sỹ kỹ thuật, Học viện Kỹ thuật Quân sự, năm 2010.
Phạm Ngọc Thắng, Nguyễn Thành Long, Trần Văn Trình, Lê Trọng Nghĩa, “Non-linear Adjustment of the Transformation Function of the Non-electric Measuring Devices by Using the Spline Interpolation Method”. Tạp chí Nghiên cứu Khoa học & Công nghệ Quân sự, Số 17, tháng 2/2012.
WH Press, SA Teukolsky, BP Flannery, WT Vetterling, “Numerical recipes in Fortran 77: volume 1, volume 1 of Fortran numerical recipes: the art of scientific computing”, Cambridge University Press, 1992.
Devenport W. J. and Edwards, S. R., “Digital Measurement and Control”, http://www.dept.aoe.vt.edu/~devenpor/aoe3054/manual/inst3/index.html, 2007.
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