Error Analysis and Compensation of the Orthogonal Magnetic Encoder
Aimed at the FPGA-based orthogonal magnetic encoder design,this paper analyzes several actual errors caused by the limitation of the processing technology and the assembly technology,which include the error caused by the imbalance of signal amplitude,the error caused by the nonorthogonality of signal phase,the error caused by the DC offset,and the error caused by harmonics.Based on ideal voltage signals,the mathematical expression of these errors cause by non-ideal characteristics and the corresponding compensation measure are derived,and through simulation and experimental,the expression and measure are verified to be right and effective.
magnetic encoder error compensation
Qi Lin Tiecai Li Zhaoyong Zhou
department of electrical engineering harbin institute of technology Harbin, Heilongjiang Province, China
国际会议
北京
英文
11-14
2011-10-21(万方平台首次上网日期,不代表论文的发表时间)