A Review of Speed Estimation Algorithms for Incremental Optical Encoder
English

Madhusudan Bang, S.D Patil
2015 International Journal of Innovative Research in Science, Engineering and Technology  
Incremental Quadrature encoder provides useful feedback information about motor positioning essential in open as well as closed loop control systems. Velocity estimation is analysed from quantized data samples obtained from encoder which needs precision in measurement of both time as well as position samples. As such feedback signals suffered from constraints like encoder resolution , quadrature phase offsets, distortion in waveforms, backlash errors inherent in motors accelerated or
more » ... motions which cause deviation in actual velocity .In this review paper various techniques for velocity estimation algorithms discussed for electric drives which reduces maximum relative error arrives in measurement and also improves accuracy through interpolation methods that estimates intermediate position samples.
doi:10.15680/ijirset.2015.0409028 fatcat:dqhn46g7nrdyzlwopgu2rztoiu