Blümm C, Weiß R, Brenk D, Weigel R (2010)
Publication Type: Conference contribution
Publication year: 2010
Publisher: IEEE
Conference Proceedings Title: IEEE International Symposium on Industrial Electronics
Event location: Bari, Italy
ISBN: 978-1-4244-6390-9
DOI: 10.1109/ISIE.2010.5637991
A major problem of almost all types of industrial sensors is their nonlinear characteristics. Coming from the sensors' inherent physical peculiarities, nonlinearity can cause severe systematic measurement inaccuracy. As a countermeasure, the numerical technique of B-spline interpolation has been adapted to the field of electrical measuring. A great benefit of this method is the ability to correct even more than sensor nonlinearity. With a simple extension of this technique, the elimination of systematic external influences, such as the effect of temperature, is possible up to a high degree. In experiments with a GMR-based current sensor and a low-cost FPGA as digital platform, a measurement accuracy of 0.25\% for current values up to ± 100A in a temperature range from -20°C to 80°C had been achieved.
APA:
Blümm, C., Weiß, R., Brenk, D., & Weigel, R. (2010). Correcting nonlinearity and temperature influence of sensors through B-Spline modeling. In IEEE International Symposium on Industrial Electronics. Bari, Italy: IEEE.
MLA:
Blümm, Christian, et al. "Correcting nonlinearity and temperature influence of sensors through B-Spline modeling." Proceedings of the IEEE International Symposium on Industrial Electronics, Bari, Italy IEEE, 2010.
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