INFLUENCE OF THE STRUCTURE OF SIGNAL CONDITIONING CIRCUITS ON THE UNCERTAINTY OF IMPEDANCE MEASUREMENT WITH ALGORITHMIC METHODS
Journal Title: Metrology and Measurement Systems - Year 2007, Vol 14, Issue 4
Abstract
The article presents an estimation of the impedance measurement uncertainty determined in the measurement circuit with a two-channel sampling transducer. Using the Monte Carlo method, the influence of dynamic error and quantization error on the probability distribution of the impedance components error has been analysed. Comparison of these errors propagation has been made for three structures of conditioning circuits of voltage and current signals on measured impedance. On the basis of the obtained probability distribution, the value of the expanded uncertainty of impedance components has been determined.
Authors and Affiliations
JERZY AUGUSTYN
Keywords
Related Articles
- EP ID EP83140
- DOI -
- Views 83
- Downloads 0
HE INFLUENCE OF THE BALL MATERIAL ON THE BRINELL HARDNESS
A Brinell hardness tester with carbide and steel balls was calibrated and thereafter the hardness of ten samples of steel STN 41 1600 was measured by four appraisers. The uncertainty of calibration and of the hardness me...
THE ANTIALIASING FILTER PARAMETERS PROPOSITION FOR LABORATORY AND DOMESTIC EQUIPMENT APPLICATION OF POWER QUALITY MEASUREMENTS SYSTEMS
Digital signal processing exists in systems which perform the processing of power waveforms. All measuring devices that use digital signal processing and computing of its discrete spectrum should be equipped with an anti...
REALIZATION OF ATOMIC SI SECOND DEFINITION IN THE CONTEXT OF UTC(PL) AND TA(PL)
In this paper, the problem of practical realization of atomic SI second definition is discussed from the metrological point of view. Special attention is devoted to the maintenance of UTC(PL) - Polish local physical real...
SEVERAL APPROACHES TO ADC TRANSFER FUNCTION APPROXIMATION AND THEIR APPLICATION FOR ADC NON-LINEARITY CORRECTION
The performance of current electronic devices is mostly limited by analog front-end and analog-to-digital converter's (ADC) actual parameters. One of the most important parameters is ADC nonlinearity. The correction of t...
TWO-PARAMETER MEASUREMENTS AND SIGNAL CONDITIONING IN DOUBLE-CURRENT SUPPLY FOUR-TERMINAL RESISTANCE CIRCUITS
A new type of the four-terminal (4T) bridge circuit unconventionally supplied by current sources connected in parallel to opposite arms, named double current bridge (2J) is presented. It has two different outputs from bo...