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小管道两相流中光电池阵列传感器的优化设计 被引量:1

The Optimal Design of Photodiode Array Sensor for Two-Phase Flow in Small Channel
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摘要 本文在已有的12×6维光电池阵列传感器的基础上,根据小管道气液两相流的流动特性,对光电池阵列传感器进行优化设计。首先,本文研究了激光穿过管道截面的光强分布特性以及光电池信号的变化,根据研究结果优化了原有传感器中光电池的数量和位置;然后,利用优化后的传感器对小管道气液两相流的相含率进行测量研究,测量结果的绝对误差在7%以内,与优化前的阵列传感器相比效果相当,研究结果表明本文对光电池阵列传感器的优化是有效的。 In this paper, the optimization of the existing 12 × 6 dimensional photodiode array sensor was implemented according to the flow characteristics of gas-liquid two-phase flow in small channel. Firstly, the light intensity distribution characteristics after the laser passing through the cross section of the small channel and the photodiode signals were analyzed, and then the number and location of photodiodes were redesigned. Secondly, void fraction measurement experiments of gas-liquid two-phase flow in small channel were carried out with the optimized sensor. The absolute errors of void fraction measurement with the optimized sensor were less than 7%, which was similar to the results obtained by the original photodiode array sensor. Experimental results show that the optimization of the photodiode array sensor was effective.
出处 《工程热物理学报》 EI CAS CSCD 北大核心 2017年第6期1263-1267,共5页 Journal of Engineering Thermophysics
基金 国家自然科学基金资助项目(No.61573312)
关键词 小管道 气液两相流 光电池阵列传感器 优化 small channel gas-liquid two-phase flow photodiode array sensor optimization
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