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Lamb wave gas sensor has broad industrial application prospects in gas sensing due to its multi-mode characteristic. Lamb wave gas sensor is now still in fundamental academic research period and its performance remains to be determined and verified experimentally. However, there is a lack of test system that can fully meet the test requirements of Lamb wave gas sensor. In this paper, a test system...
Based on a hybrid flowmeter and a dominant phase identifier, a new system is proposed for oil-water two-phase flow measurement. The hybrid flowmeter consists of an oval gear flowmeter and a Venturi meter. The dominant phase identifier is utilized to overcome the influence of oil fraction on the measurement results. In the practical measurement process, the total volume flowrate and the differential...
Based on ant system algorithm (ASA) and 12-electrode electrical capacitance tomography (ECT) system, a new method is proposed for the on-line voidage measurement of oil-gas two-phase flow. The ASA is adopted to select the effective capacitance set (the capacitances in this set make significant contributions to the voidage measurement) from 66 measurement capacitances obtained from the ECT system and...
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