Improved Measurement Accuracy Based on Moving Sine-Wave Fitting for Ultrasonic Ranging
In ultrasonic ranging system, the time-of-flight (TOF), which acquired by the determination of two special points of ultrasonic echo, is important for accuracy and speed. The published calculation of TOF processing methods is too enormous to affect the real-time performance. To improve its measureme...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2022/9570857 |
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| _version_ | 1832545957562023936 |
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| author | Xuanze Wang Aihui Wang Jinping Yin Hang Zhao Zhengqiong Dong Yiyan Fan Zhongsheng Zhai |
| author_facet | Xuanze Wang Aihui Wang Jinping Yin Hang Zhao Zhengqiong Dong Yiyan Fan Zhongsheng Zhai |
| author_sort | Xuanze Wang |
| collection | DOAJ |
| description | In ultrasonic ranging system, the time-of-flight (TOF), which acquired by the determination of two special points of ultrasonic echo, is important for accuracy and speed. The published calculation of TOF processing methods is too enormous to affect the real-time performance. To improve its measurement accuracy and speed, we proposed a new algorithm called “moving sine-wave fitting” to calculate the envelope of ultrasonic echo for each calibration point. Then, the absolute feature point (AFP) corresponding to half of the envelope peak can be defined and used to find out the relative feature point (RFP); the linear relationship between the RFPs and the known distances should be obtained referring to calibration points. At last, the distance on the measure can be acquired by using linear interpolation according to the above relationship. The measurement experiments have been performed on a set of distances, which shows a good measurement resolution that the overall measurement accuracy is 0.513 mm, and the linear correlation coefficient between the RFPs and the obtained distances is R2 = 0.806. |
| format | Article |
| id | doaj-art-e47018a9c71f4a399e38aa7815087234 |
| institution | Kabale University |
| issn | 1875-9203 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-e47018a9c71f4a399e38aa78150872342025-02-03T07:24:17ZengWileyShock and Vibration1875-92032022-01-01202210.1155/2022/9570857Improved Measurement Accuracy Based on Moving Sine-Wave Fitting for Ultrasonic RangingXuanze Wang0Aihui Wang1Jinping Yin2Hang Zhao3Zhengqiong Dong4Yiyan Fan5Zhongsheng Zhai6School of Mechanical EngineeringSchool of Mechanical EngineeringSchool of Mechanical EngineeringSchool of Mechanical EngineeringSchool of Mechanical EngineeringSchool of Mechanical EngineeringSchool of Mechanical EngineeringIn ultrasonic ranging system, the time-of-flight (TOF), which acquired by the determination of two special points of ultrasonic echo, is important for accuracy and speed. The published calculation of TOF processing methods is too enormous to affect the real-time performance. To improve its measurement accuracy and speed, we proposed a new algorithm called “moving sine-wave fitting” to calculate the envelope of ultrasonic echo for each calibration point. Then, the absolute feature point (AFP) corresponding to half of the envelope peak can be defined and used to find out the relative feature point (RFP); the linear relationship between the RFPs and the known distances should be obtained referring to calibration points. At last, the distance on the measure can be acquired by using linear interpolation according to the above relationship. The measurement experiments have been performed on a set of distances, which shows a good measurement resolution that the overall measurement accuracy is 0.513 mm, and the linear correlation coefficient between the RFPs and the obtained distances is R2 = 0.806.http://dx.doi.org/10.1155/2022/9570857 |
| spellingShingle | Xuanze Wang Aihui Wang Jinping Yin Hang Zhao Zhengqiong Dong Yiyan Fan Zhongsheng Zhai Improved Measurement Accuracy Based on Moving Sine-Wave Fitting for Ultrasonic Ranging Shock and Vibration |
| title | Improved Measurement Accuracy Based on Moving Sine-Wave Fitting for Ultrasonic Ranging |
| title_full | Improved Measurement Accuracy Based on Moving Sine-Wave Fitting for Ultrasonic Ranging |
| title_fullStr | Improved Measurement Accuracy Based on Moving Sine-Wave Fitting for Ultrasonic Ranging |
| title_full_unstemmed | Improved Measurement Accuracy Based on Moving Sine-Wave Fitting for Ultrasonic Ranging |
| title_short | Improved Measurement Accuracy Based on Moving Sine-Wave Fitting for Ultrasonic Ranging |
| title_sort | improved measurement accuracy based on moving sine wave fitting for ultrasonic ranging |
| url | http://dx.doi.org/10.1155/2022/9570857 |
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