Comparative Evaluation of the Two Current Source Supplied Strain Gauge Bridge
| Autor: | Adam Idzkowski, Wojciech Walendziuk, Jerzy Golebiowski |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
Offset (computer science) Wheatstone bridge business.industry 010401 analytical chemistry 020206 networking & telecommunications 02 engineering and technology Structural engineering Current source 01 natural sciences Bridge (nautical) 0104 chemical sciences Metrology law.invention Loop (topology) law 0202 electrical engineering electronic engineering information engineering Bridge circuit Electronic engineering Electrical and Electronic Engineering business Strain gauge |
| Zdroj: | Elektronika ir Elektrotechnika. 22 |
| ISSN: | 2029-5731 1392-1215 |
| DOI: | 10.5755/j01.eie.22.6.17220 |
| Popis: | Metrological properties of a two-current-source bridge circuit were tested with the use of the method of measuring resistance increments of strain gauges. An unconventional system was investigated in comparison with the commonly used Wheatstone’s half-bridge, quarter-bridge and Anderson’s loop. Input-output characteristics of the systems tested with a current supply were examined experimentally. Error values of offset and gain of the characteristics in relation to the characteristics of reference were taken as the criterion of comparison. Moreover, standard uncertainties of y-intercept and slope coefficients (of the straight lines) were analysed. The coefficients with their uncertainties are presented in tables. Errors for three tested systems with two metal strain gauges or with one semiconductor are presented on graphs. Additionally, the errors change, resulted from the spread of initial resistances as the quantity influencing the uncertainties of offset and gain coefficients, was defined for the bridge circuits.DOI: http://dx.doi.org/10.5755/j01.eie.22.6.17220 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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