2021
DOI: 10.1038/s41598-021-02877-w
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Verification of flow velocity measurements using micrometer-order thermometers

Abstract: In flow velocity measurements, resolution, miniaturization, and accuracy of measuring devices are important issues because the measuring devices significantly affect the flow in the micro-space, sonic flow, and turbulent flow. We studied recovery temperature anemometry (RTA) using micrometer-order thermometers and evaluated its validity in two velocity ranges (40–90 and 315–420 m/s) by conducting two experiments and a numerical simulation. The results confirmed that the difference between the reference velocit… Show more

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Cited by 2 publications
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“…Figure 2 shows the results of evaluating the accuracy of RTA with a flow velocity reference with an expanded uncertainty of 0.63% owned by NMIJ. For detailed experimental conditions, please refer to [4] [5] [6]. Each measurement was taken three times, the plots represent mean values, and the error bars represent standard errors.…”
Section: Comparison Between Rta and Reference Standardmentioning
confidence: 99%
“…Figure 2 shows the results of evaluating the accuracy of RTA with a flow velocity reference with an expanded uncertainty of 0.63% owned by NMIJ. For detailed experimental conditions, please refer to [4] [5] [6]. Each measurement was taken three times, the plots represent mean values, and the error bars represent standard errors.…”
Section: Comparison Between Rta and Reference Standardmentioning
confidence: 99%