Title :
Accurate and fast speed measurement using ramp-waveform sampling technique
Author_Institution :
Sch. of Electron. & Electr. Eng., Birmingham Univ., UK
fDate :
10/1/1999 12:00:00 AM
Abstract :
A novel “ramp-waveform sampling technique” for accurate and fast speed measurement is presented. Square pulses from an encoder are turned into ramps using analog electronics. They are then sampled, and linear regression is used on ramp-waveform sample points to extrapolate backward and determine the starting point of each pulse very accurately
Keywords :
angular velocity measurement; extrapolation; sampling methods; statistical analysis; accurate speed measurement; analog electronics; angular speed measurement; encoder; extrapolation; fast speed measurement; linear regression; ramp-waveform sample points; ramp-waveform sampling technique; square pulses; Circuits; Control systems; Nonlinear dynamical systems; Pi control; Power factor correction; Reactive power; Rectifiers; Sampling methods; Velocity measurement; Voltage control;
Journal_Title :
Industrial Electronics, IEEE Transactions on
