Non-Contact Water Level Response Measurement of a Tubular Level Gauge Using Image Signals
Abstract
:1. Introduction
2. Water Level Response Measurement Using Image Signals
2.1. Image Correlation Method
2.2. Image Enhancement
2.3. Algorithm Summary
3. Estimation of the Water Level Response of the Tubular Level Gauge
3.1. Experiment Setup
3.2. Dynamic Characteristics of the Liquid Storage Tank
3.3. Application of Image Enhancement Method
3.4. Water Level Response Measurement in the Shaking Table Test
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Filter | Image Filter Processing |
---|---|
Filter 1 | Gray level |
Filter 2 | Median |
Filter 3 | Histogram transformation |
Filter 4 | Median + histogram transformation |
Load Case | Seismic Wave | Direction |
---|---|---|
1 | Random | X |
2 | El Centro, 50% | X |
3 | El Centro, 100% | X |
Load Case | Cross Correlation Function | Percent Error (%) | Root Mean Square (RMS) Error (mm) |
---|---|---|---|
1 | 0.988 | 0.427 | 0.162 |
2 | 0.983 | 0.359 | 0.141 |
3 | 0.979 | 0.545 | 0.258 |
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Kim, S.-W.; Park, D.-U.; Jeon, B.-G.; Chang, S.-J. Non-Contact Water Level Response Measurement of a Tubular Level Gauge Using Image Signals. Sensors 2020, 20, 2217. https://doi.org/10.3390/s20082217
Kim S-W, Park D-U, Jeon B-G, Chang S-J. Non-Contact Water Level Response Measurement of a Tubular Level Gauge Using Image Signals. Sensors. 2020; 20(8):2217. https://doi.org/10.3390/s20082217
Chicago/Turabian StyleKim, Sung-Wan, Dong-Uk Park, Bub-Gyu Jeon, and Sung-Jin Chang. 2020. "Non-Contact Water Level Response Measurement of a Tubular Level Gauge Using Image Signals" Sensors 20, no. 8: 2217. https://doi.org/10.3390/s20082217
APA StyleKim, S. -W., Park, D. -U., Jeon, B. -G., & Chang, S. -J. (2020). Non-Contact Water Level Response Measurement of a Tubular Level Gauge Using Image Signals. Sensors, 20(8), 2217. https://doi.org/10.3390/s20082217