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Correction

Correction: Wang, Y.; et al. Magnesium Alloy Matching Layer for High-Performance Transducer Applications. Sensors 2018, 18, 4424

1
National Engineering Research Center of Light Alloy Net Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2
Department of Instrument Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
3
Shanghai Key Lab of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, Shanghai 200240, China
4
Department of Mathematics and Materials Research Institute, The Pennsylvania State University, University Park, PA 16802, USA
*
Authors to whom correspondence should be addressed.
Sensors 2019, 19(18), 3888; https://doi.org/10.3390/s19183888
Submission received: 27 June 2019 / Accepted: 12 August 2019 / Published: 9 September 2019
(This article belongs to the Section Physical Sensors)
The authors wish to make the following corrections to this paper [1]:
In the Results and Discussion section of the paper [1], Figure 7 and Figure 8 from another set of simulations using different parameters were mistakenly used, so the correct ones are given below:
The designed 5 MHz transducer showed a center frequency of 4.73 MHz after putting the backing and matching layers with a −6 dB bandwidth of 77.38% (corresponding to the lower and upper −6 dB frequencies of 2.90 MHz and 6.56 MHz). The center frequency and −6 dB bandwidth for the designed 10 MHz transducer were 9.61 MHz and 77%, respectively (corresponding to the lower and upper −6 dB frequencies of 5.91 MHz and 13.31 MHz). These simulation results agreed well with the experimental results.
In addition, the anti-resonance frequency for the fabricated 5 MHz transducer listed in Table 3 of the paper [1] should be 4.87 MHz, instead of 6.0 MHz.

References

  1. Wang, Y.; Tao, J.; Guo, F.; Li, S.; Huang, X.; Dong, J.; Cao, W. Magnesium Alloy Matching Layer for High-Performance Transducer Applications. Sensors 2018, 18, 4424. [Google Scholar] [CrossRef] [PubMed]
Figure 7. The modeled pulse–echo response and the FFT spectrum of the 5 MHz transducer.
Figure 7. The modeled pulse–echo response and the FFT spectrum of the 5 MHz transducer.
Sensors 19 03888 g007
Figure 8. The modeled pulse–echo response and the FFT spectrum of the 10 MHz transducer.
Figure 8. The modeled pulse–echo response and the FFT spectrum of the 10 MHz transducer.
Sensors 19 03888 g008

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MDPI and ACS Style

Wang, Y.; Tao, J.; Guo, F.; Li, S.; Huang, X.; Dong, J.; Cao, W. Correction: Wang, Y.; et al. Magnesium Alloy Matching Layer for High-Performance Transducer Applications. Sensors 2018, 18, 4424. Sensors 2019, 19, 3888. https://doi.org/10.3390/s19183888

AMA Style

Wang Y, Tao J, Guo F, Li S, Huang X, Dong J, Cao W. Correction: Wang, Y.; et al. Magnesium Alloy Matching Layer for High-Performance Transducer Applications. Sensors 2018, 18, 4424. Sensors. 2019; 19(18):3888. https://doi.org/10.3390/s19183888

Chicago/Turabian Style

Wang, Yulei, Jingya Tao, Feifei Guo, Shiyang Li, Xingyi Huang, Jie Dong, and Wenwu Cao. 2019. "Correction: Wang, Y.; et al. Magnesium Alloy Matching Layer for High-Performance Transducer Applications. Sensors 2018, 18, 4424" Sensors 19, no. 18: 3888. https://doi.org/10.3390/s19183888

APA Style

Wang, Y., Tao, J., Guo, F., Li, S., Huang, X., Dong, J., & Cao, W. (2019). Correction: Wang, Y.; et al. Magnesium Alloy Matching Layer for High-Performance Transducer Applications. Sensors 2018, 18, 4424. Sensors, 19(18), 3888. https://doi.org/10.3390/s19183888

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