| 运动条件下超声波壁厚测量的系统辨识 |
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| 引用本文： | 屈圭,霍江明.运动条件下超声波壁厚测量的系统辨识[J].机床与液压,2007,35(11):124-126,103. |
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| 作者姓名： | 屈圭 霍江明 |
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| 作者单位： | 1. 广东技术师范学院机电学院,广东广州,510635
2. 新疆金风科技有限公司研发中心,新疆乌鲁木齐,830011 |
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| 摘 要： | 研究了一种在随机摆振与扭振运动工作条件下,用超声波发射与接收系统测量管径与壁厚的数字系统辨识模型.解决了从超声波反射信号中提取壁厚参数的问题.对超声波发射与接收装置在随机摆动与扭振工作条件下如何运用Hillbert变换得到高精度的壁厚参数的数学模型做了详细的讨论,得到了壁厚的计算公式.
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| 关 键 词： | 超声波 壁厚 测量 系统辨识 模型 运动条件 超声波 壁厚测量 系统辨识模型 Movement Stochastic Condition Thickness Ultrasonic Measurement Identification 计算公式 数学模型 精度 变换 运用 接收装置 声波发射 问题 参数 提取 |
| 文章编号： | 1001-3881（2007）11-124-3 |
| 修稿时间： | 2006-12-07 |
The Systemic Identification of Ultrasonic Measurement on Thickness under the Condition of Occurring Stochastic Movement |
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| QU Gui,HUO Jiangming.The Systemic Identification of Ultrasonic Measurement on Thickness under the Condition of Occurring Stochastic Movement[J].Machine Tool & Hydraulics,2007,35(11):124-126,103. |
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| Authors: | QU Gui HUO Jiangming |
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| Abstract: | A kind of digital systemic identification model was researched with the equipment of ultrasonic emission and receival measuring the diameter and thickness of steel tube under the condition of occurring stochastic vibration of swing and twist. The method to get the thickness information from the echo signal of ultrasonic was presented. How to use the Hillbert transform to acquire the high precision mathematics model of the thickness parameter by using the equipment was discussed. The calculating formula of the thickness parameter was given out. |
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| Keywords: | Ultrasonic Thickness Measurement Systemic identification Model |
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