Title :
Analysis of the influence of quantization error at sensor autocalibration
Author :
Kralikova, Eva ; Ravas, Rudolf
Author_Institution :
Fac. of Electr. Eng. & Inf. Technol., Slovak Univ. of Technol. in Bratislava, Bratislava, Slovakia
Abstract :
The paper treats the auto-calibration of sensors based on the test method that allows correction of additive, multiplicative and linearity error of sensor. Test method is based on the local approximation of nonlinear conversion function by linear dependence. The degree of approximation depends on parameters modifying measured signal. Paper presents the analysis of relationship among mentioned approximation parameters and quantization error of A/D (analog to digital) converter used for test method realization by microcomputer. Knowledge of those relationships allows definition of the requirements on values of modifying parameters of the described method and A/D converter resolution.
Keywords :
calibration; error analysis; nonlinear functions; quantisation (signal); sensors; A/D converter; autocalibration; linear dependence; local approximation; nonlinear conversion function; quantization error; sensor; test method realization; Electric variables measurement; Error correction; Information technology; Linearity; Measurement standards; Paper technology; Polynomials; Quantization; Sensor phenomena and characterization; System testing; autocalibration; sensors;
Conference_Titel :
MECHATRONIKA, 2010 13th International Symposium
Print_ISBN :
978-1-4244-7962-7
Electronic_ISBN :
978-80-8075-451-8
