钢板超声波测厚仪测量误差及分析 |
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引用本文: | 司春杰.钢板超声波测厚仪测量误差及分析[J].无损检测,2013(12):64-66. |
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作者姓名: | 司春杰 |
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作者单位: | 济南钢铁股份有限公司,济南250101 |
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摘 要: | 使用超声波测厚仪检测钢板厚度时有时会存在较大的测量误差。分析了造成钢板测厚误差的原因。发现由于常用的超声波测厚仪的检测灵敏度非常高,会导致钢板内部存在的较小缺欠、分层、偏析、材质不均匀等材质缺陷影响了测厚精度和准确性。因此建议在使用超声波测厚仪出现异常读数时,需要使用超声波探伤仪对疑似异常位置进行探伤确认,排除材质缺陷,以免造成钢板测厚的误读和错误测量。
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关 键 词: | 超声波探伤 超声波测厚 测量误差 |
Analysis of inaccurate for steel plate on Ultrasonic Gauge-measured Thickness |
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Affiliation: | Sl Chun-Jie (Jinan Iron and Steel Co I.td, Ji'nan 250101, China) |
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Abstract: | Sometimes there is a totally thickness data error during the steel plate thickness measurement wire an ultrasonic thickness gauge. The reasons caused the error were analyzed and found that ultrasonic thickness gauge had a high testing sensitivity to detect the material defects, such as tiny defect, lamination, material segregation and material uneven, which all could affect the accuracy and resolution of thickness measurement easily. A suggestion was proposed to take on an ultrasonic testing on the abnormal location to preclude getting an error thickness data for the thickness measurement of the steel plate. |
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Keywords: | Ultrasonic testing Ultrasonic thickness measurement Measurement error |
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