Research and Experiment on Nonlinear Correction Algorithm of Metal Tube Rotameter
The calibration curve of some metal tube rotameter has the characteristic of mutation. If the nonlinear least square method is still used as the method of linear correction, it will increase the measurement error and reduce the measurement accuracy. This paper presents a Division Ordinary Least Squares Method, which can reduce errors and improve accuracy. By the algorithm comparative experiment it can be proved that the method can improve the measurement accuracy.
Riza Esa and Yanwen Wu
G. Z. Shen et al., "Research and Experiment on Nonlinear Correction Algorithm of Metal Tube Rotameter", Advanced Materials Research, Vols. 301-303, pp. 1123-1127, 2011