What are the effects of different time windows on the accuracy of ultrasonic velocity monitoring?
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Different time windows in ultrasonic velocity monitoring can have varying effects on accuracy. In the study by Zhong and Zhu, it was found that the obtained wave-velocity change depends on the time window position, as the relative contribution of P wave and S wave is different in each signal window . Matsushima et al. proposed a method that enables accurate measurement of ultrasonic attenuation using sweep signals, which is independent of the effect of windowing that can distort spectral distribution . Han et al. suggested that adaptive anisotropic windowing could be beneficial in echo-particle image velocimetry, especially in regions with high velocity gradients, resulting in improved accuracy of peak velocity detection . In the study by Zhang, Guo, and Lin, theoretical flowrate correction factors were proposed to consider the effects of velocity profiles across the pipe on the propagation time of ultrasonic waves, leading to higher accuracy in flowrate measurement .
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| Papers (5) | Insight |
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10 Oct 2022 | The use of anisotropic windows in ultrasonic velocity monitoring can improve the accuracy of peak velocity estimation in jet-like flow profiles. |
| The effects of different time windows on the accuracy of ultrasonic velocity monitoring are not mentioned in the provided information. | |
3 Citations | The effects of different time windows on the accuracy of ultrasonic velocity monitoring are not mentioned in the provided information. |
| The accuracy of ultrasonic velocity monitoring is affected by different time windows, as the relative contributions of P and S waves vary with window positions. | |
| The use of adaptive anisotropic windows in echoPIV improves peak velocity accuracy in ultrasound velocity monitoring. |
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