IMPROVING PERFORMANCE OF ENCODERS BASED SYSTEMS USING WAVELET TECHNIQUES

• Abstract:

  This paper aims at the accuracy improvement of low-cost encoders based systems. Calibration data together with the approximations and details of wavelet decomposition are used to obtain some important parameters of absolute encoders. Differential and integral non-linear errors are estimated and their values are used to increase measurement accuracy. An error compensated system can easily be obtained by including the encoder, a microcontroller and a memory with a code conversion table. Simulation and experimental results, obtained from a low-cost angular encoder, are used to validate the proposed characterisation method based on wavelet data processing.
• Keywords:

  encoders, wavelet transforms, error compensation
• Download:

  IMEKO-TC7-2004-077.pdf
• DOI:

  _unreg_tc7-2004.077

Event details:

• IMEKO TC:

  TC7
• Event name:

  TC7 Symposium 2004
• Title:

  10th Symposium on Advances of Measurement Science

• Place:

  St. Petersburg, RUSSIA
• Time:

  30 June 2004 - 2 July 2004