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An experimental analysis of the metrologigal performances of an automatic thermocouple instrumentation system conducted by a simple calibration setup

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Abbreviations

ΔT:

difference between the set calibration temperature and the measured value

ΔV:

difference between the calibration voltage and the value measured by the digital voltmeter

R T :

resistance of the thermistor in the multiplexer

T :

generic temperature measured by the data acquisition control system

T CAL :

temperature calibration value

T CJ :

temperature of the cold junction of the thermocouple

T HJ :

temperature of the hot junction of the thermocouple

T MEAS :

temperature measured by the data acquisition control system dependently on the calibration value

V :

sum of the voltages corresponding to the temperatures of the cold and the hot junctions

V CAL :

voltage corresponding to the temperature calibration value

\({V_{{\rm{CAL}}_{{\rm{app}}}}}\) :

voltage applied by the universal source

\({V_{{\rm{CAL}}_{{\rm{meas}}}}}\) :

voltage measured by the digital voltmeter

V CJ :

voltage corresponding to the cold junction temperature

V HJ :

voltage corresponding to the hot junction-temperature

V IV :

voltage measured by the integrating digital voltmeter

References

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  7. Cappa, P., Sciuto, S.A. McConnell, K.G. and Zachary, L.W., “Verification of the Duplex Gage Using Variable Strains and Temperature,” Society for Experimental Mechanics Spring Conference, 1993, Dearborn, MI, 7–9 Giugno, 81–87.

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Authors and Affiliations

  1. Department of Mechanics and Aeronautics, University of Rome “La Sapienza,”, Rome, Italy

    P. Cappa (SEM Member, Associated Professor) & S. A. Sciuto (SEM member, Research Associate)

Authors
  1. P. Cappa
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  2. S. A. Sciuto
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Cappa, P., Sciuto, S.A. An experimental analysis of the metrologigal performances of an automatic thermocouple instrumentation system conducted by a simple calibration setup. Exp Tech 18, 19–23 (1994). https://doi.org/10.1111/j.1747-1567.1994.tb00300.x

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  • DOI: https://doi.org/10.1111/j.1747-1567.1994.tb00300.x

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