1991•University of North Texas Digital Library (University of North Texas)Open access
Comparisons among calibration instruments in the CALDEX accountancy tank calibration
Alan S. Goldman, P. De Ridder, G. Laszlo, R. Weh
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Abstract
An experiment known as the CALibration Demonstration EXercise (CALDEX) has tested volume, weight, and level measurement instruments in a 12,500-{ell} annular vessel. Data from this experiment were statistically analyzed in the following ways: Data from various high-precision differential pressure gauges, liquid-level determination instruments, and weight devices were analyzed and compared; Incremental inputs to the tank, determined by a high-precision balance and rotary piston meter, were compared with load cell measurements and found to agree; and Data from precision pressure gauges did not vary significantly among gauges; data from capacitive level measurement instruments did not vary either. However, data from the sonic probe were not consistent enough to make comparison meaningful. 3 refs., 3 figs., 3 tabs.
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