Calibration of an electronic measuring system for ultrasonic analysis of solutions

The problem of calibrating a system for measuring the concentration of methanol in water is investigated. The inefficiency of polynomial and inverse-polynomial models used for this purpose is demonstrated. The cubic-spline interpolation is chosen and examined as a flexible means of calibration. A me...

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Bibliographic Details
Published in7th IEEE Conference on Instrumentation and Measurement Technology pp. 100 - 102
Main Authors Barwicz, A., Morawski, R.Z., Dion, J.-L.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1990
Subjects
Calibration
Chemical technology
Methanol
Polynomials
Resonant frequency
Temperature dependence
Temperature sensors
Transfer functions
Ultrasonic variables measurement
Voltage
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Summary:The problem of calibrating a system for measuring the concentration of methanol in water is investigated. The inefficiency of polynomial and inverse-polynomial models used for this purpose is demonstrated. The cubic-spline interpolation is chosen and examined as a flexible means of calibration. A method for experimental validation of the results of calibration is proposed. The proposed method makes possible the utilization of a much greater amount of calibration data for improving the accuracy of calibration as compared with the polynomial and inverse-polynomial models, and requires much less a priori information on the relationships between quantities involved in the measurement process.< >
DOI:10.1109/IMTC.1990.65973