近赤外光を用いた非接触型微量流量計の研究(熱工学,内燃機関,動力など)

概要

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We have proposed a novel method of non-contact thermal type measurement for low flow rates using radiation heating and spectroscopy of water in the near-infrared wavelength range. We made a simulation for studying the performance of the flowmeter, and based on the simulation we conducted experiments using a prototype flowmeter. We obtained calibration curves between the estimated and true flow rates. From the experimental results, we can measure the flow rates from 0.3 to 9ml/min with the accuracy of about 10% of the flow rate. We also obtained agreement between the simulation and measurement results. Discussions are made to improve the measurement accuracy.
社団法人日本機械学会の論文
2008-10-25