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|Title:||New interpolation method for quadrature encoder signals|
|Authors:||Tan, K.K. |
Quadrature encoder signals
|Source:||Tan, K.K., Zhou, H.X., Lee, T.H. (2002-10). New interpolation method for quadrature encoder signals. IEEE Transactions on Instrumentation and Measurement 51 (5) : 1073-1079. ScholarBank@NUS Repository. https://doi.org/10.1109/TIM.2002.806028|
|Abstract:||This paper presents a new interpolation method suitable for increasing the measurement resolution obtainable from quadrature encoder signals. Based on the existing sinusoidal signals, high-order sinusoids can be derived, from which binary pulses can be generated, which can be decoded using only standard servo controllers for position information. A look-up table, constructed off-line, serves as the inferencing engine for the proposed method. Imperfections in the encoder signals can be directly compensated for in the look-up table, including mean and phase offsets, amplitude difference, and waveform distortion. Simulation and experimental results are provided in this paper.|
|Source Title:||IEEE Transactions on Instrumentation and Measurement|
|Appears in Collections:||Staff Publications|
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