METHOD OF PROCESSING ACCURACY ENHANCEMENT OF PHOTOELECTRIC POSITION TRANSDUCER SIGNALS
Journal Title: Metrology and Measurement Systems - Year 2005, Vol 12, Issue 3
Abstract
A method and the system for accuracy enhancement and motion direction discrimination of the photoelectric position transducer have been presented in the paper. In the system sinusoidal phase voltages, with the assumed phase shift equal to 36° have been generated. The voltages enable a frequency increment of 2.5 times in relation to basic signals from the transducer measurement bar. These two signals of increased frequency are rectangular, shifted mutually by 1/4 of a period, with the pulse-duty factor equal to 0.5. On the base of these signals it is possible to further increase the accuracy twofold, in the system of pulse counting and pulse sequence discrimination, with the use of the trigger method of its motion direction identification. Presented methods and systems make it possible to increase the transducer processing accuracy five times.
Authors and Affiliations
ZBIGNIEW SZCZEŚNIAK
Keywords
Related Articles
- EP ID EP129057
- DOI -
- Views 75
- Downloads 0
CALIBRATION OF EXTREMELY SENSITIVE RANGES OF DC PICOAMMETERS WITH ANALOG ACTIVE I/U CONVERSION
The paper deals with the problem of calibration of extremely sensitive picoammeters with measuring ranges close to limits of the measuring possibilities. The presented method of calibration bases on a resistive source of...
NOVELTIES IN ELECTRICAL MEASUREMENTS AND INSTRUMENTATION<br /> IN THE WAKE OF IMEKO TC4 & TC 19 SYMPOSIA AND ADC WORKSHOP<br /> IN IASI, ROMANIA, SEPTEMBER 2007
From 18 to 22 September 2007, at the Technical University “Gh. Asachi” of Iasi, Romania, there took place undoubtedly important scientific events, held under the auspices of the International Measurement Confederation....
THE EVOLVING SCIENCE OF MEASUREMENT
This special issue of Metrology and Measurement Systems contains an updated and extended version of selected papers published in the proceedings of the XVIII IMEKO World Congress, held in September 2006 in Rio de Janeiro...
THE RECONSTRUCTION OF WAVEFORMS OF IMPULSIVE STRAIN OCCURING IN AN ELASTIC BAR BY MEANS OF DECONVOLUTION IN THE FREQUENCY DOMAIN<br />
The paper presents a method of reconstruction of impulsive strain waveforms based on deconvolution in the frequency domain and the spectral transmittance of the bar, which was determined experimentally and given in an an...
AN OPTIMAL DEGREE OF COMPLEXITY OF A SIMPLIFIED MODEL
A simplified model can be created using one of the already known mathematical methods (series expansion of a function, truncating continued fraction expansion [1] and so forth) if the analytic form of the full model is k...