APPLICATION OF ONE AND DOUBLE NEEDLE ELECTRICAL PROBE FOR MEASUREMENT IN AIR-WATER FLOWS

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JALILI M.R.; ZERAATI A.R.

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Journal: Year:2005 | Volume:38 | Issue:6 (88) Page(s): 735-746

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Information Journal Paper

Title

APPLICATION OF ONE AND DOUBLE NEEDLE ELECTRICAL PROBE FOR MEASUREMENT IN AIR-WATER FLOWS

Author(s)

JALILI M.R. | ZERAATI A.R. | Issue Writer Certificate

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Abstract

In the present paper application of a one-needle and a double-needle electrical probe with developed specifications is introduced for measurement in air-water flows. The new one-needle probe has the capability of measuring air concentration and bubble count with very high sampling frequency. Another advantage of this probe is real time measurement and on-line presentation of results. More than 30 sets of tests were carried out in air-water flows to calibrate the probe and to determine the circuit threshold level. To measure the velocity of air-water mixture a double-needle electrical probe is employed. The specifications of the double-needle probe are similar to the one-needle probe with addition of one needle to make it capable of measuring flow velocity. To ensure the performance of the double-needle probe, its measurements were compared with a pitot tube. This comparison showed that the maximum difference in measurements was less than 4%.

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APA: Copy

JALILI, M.R., & ZERAATI, A.R.. (2005). APPLICATION OF ONE AND DOUBLE NEEDLE ELECTRICAL PROBE FOR MEASUREMENT IN AIR-WATER FLOWS. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN), 38(6 (88)), 735-746. SID. https://sid.ir/paper/14168/en

Vancouver: Copy

JALILI M.R., ZERAATI A.R.. APPLICATION OF ONE AND DOUBLE NEEDLE ELECTRICAL PROBE FOR MEASUREMENT IN AIR-WATER FLOWS. JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN)[Internet]. 2005;38(6 (88)):735-746. Available from: https://sid.ir/paper/14168/en

IEEE: Copy

M.R. JALILI, and A.R. ZERAATI, “APPLICATION OF ONE AND DOUBLE NEEDLE ELECTRICAL PROBE FOR MEASUREMENT IN AIR-WATER FLOWS,” JOURNAL OF FACULTY OF ENGINEERING (UNIVERSITY OF TEHRAN), vol. 38, no. 6 (88), pp. 735–746, 2005, [Online]. Available: https://sid.ir/paper/14168/en

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