CN104897779B - 利用线性调频信号测量超声波传播时间的方法 - Google Patents
利用线性调频信号测量超声波传播时间的方法 Download PDFInfo
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- CN104897779B CN104897779B CN201510381313.0A CN201510381313A CN104897779B CN 104897779 B CN104897779 B CN 104897779B CN 201510381313 A CN201510381313 A CN 201510381313A CN 104897779 B CN104897779 B CN 104897779B
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000012545 processing Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 20
- 230000005284 excitation Effects 0.000 claims abstract description 13
- 238000001228 spectrum Methods 0.000 claims abstract description 10
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 238000000354 decomposition reaction Methods 0.000 claims description 4
- 238000012958 reprocessing Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 4
- 230000035515 penetration Effects 0.000 abstract description 4
- 238000002604 ultrasonography Methods 0.000 abstract 2
- 238000005086 pumping Methods 0.000 abstract 1
- 230000002123 temporal effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000002238 attenuated effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 238000009659 non-destructive testing Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005314 correlation function Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Publication number | Priority date | Publication date | Assignee | Title |
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CN106033073B (zh) * | 2016-06-30 | 2018-12-07 | 西安交通大学 | 一种基于超声反射的电缆检测及评价方法 |
JP7012497B2 (ja) * | 2017-10-04 | 2022-01-28 | 上田日本無線株式会社 | 伝搬時間測定装置、気体濃度測定装置および伝搬時間測定プログラム |
CN112649789A (zh) * | 2020-12-07 | 2021-04-13 | 深圳先进技术研究院 | 基于高功率低频宽带脉冲声源的水下远程定位技术 |
CN113671040B (zh) * | 2021-09-08 | 2024-06-25 | 南方电网科学研究院有限责任公司 | 一种gis/gil绝缘子应力超声检测平台和检测方法 |
CN114544053B (zh) * | 2021-12-16 | 2023-07-25 | 鹏城实验室 | 基于超声波-软体波导管的压力与应变传感器 |
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Application publication date: 20150909 Assignee: Shandong Heze Fulin Wood Industry Co., Ltd. Assignor: Zhejiang A & F University Contract record no.: 2019330000002 Denomination of invention: Method of measuring ultrasonic wave transmission time by using chirp signals Granted publication date: 20180316 License type: Common License Record date: 20190108 |
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