相关实验视频

Updated: Jul 21, 2025

Ultrasonic Fatigue Testing in the Tension-Compression Mode

Ultrasonic Fatigue Testing in the Tension-Compression Mode

Published on: March 7, 2018

超声波厚度计的自我补偿方法

Nicolás Pérez¹, Marcelo Y Matuda², Flávio Buiochi²

¹Facultad de Ingenieria, Universidad de la República, Av. J. Herrera y Reissig 565 Montevideo, Uruguay.

|July 26, 2023

概括

本研究介绍了一种自我补偿的超声波方法,用于工业结构中精确的厚度测量. 该技术有效地弥补温度变化,使得随着时间的推移可以精确监测腐蚀和磨损.

科学领域:

材料科学材料科学材料科学
非破坏性测试不破坏性测试
机械工程机械工程

背景情况:

管道和水箱等机械结构因腐蚀,侵蚀和磨损而随着时间的推移而退化,减少其寿命.
厚度测量对于预防性维护至关重要,但传统方法与缓慢的降解过程和环境因素作斗争.
脉冲回声超声波是厚度测量的有前途的技术,但对温度诱导的机械稳定性和超声速变化敏感.

研究的目的:

实施和验证金属结构中的超声波厚度测量自补偿方法.
为应对机械组件稳定性和超声波速度变化的挑战,这些变化是由温度波动引起的.
为了能够长期,准确地监测由于腐蚀和磨损而导致的厚度减少.

主要方法:

开发一种方法来补偿温度对超声速和机械组装的影响,使用超声波信号分析.
使用参考温度和已知的超声速来确定初始厚度变化.
使用旨在确保机械稳定性的刚性样本进行实验验证.

主要成果:

提出的方法成功地弥补了超声波测量的温度影响.
该技术展示了检测几微米小的厚度减少的能力.
自补偿方法允许在长时间内可靠地测量厚度.

结论:

开发的自我补偿超声波方法为监测工业金属结构的厚度减小提供了强大的解决方案.
这种技术通过准确跟踪温度影响下的降解来增强预防性维护策略.
该方法提供了一种可靠的方法,以高精度评估腐蚀和磨损.

关键词:

腐蚀是一种腐蚀.温度补偿是一种温度补偿.测量厚度的测量方法超声波监控监控超声波监控超声波监控超声波监控超声波监控超声波监控

更多相关视频

Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics

Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics

Published on: August 5, 2020

Experiments on Ultrasonic Lubrication Using a Piezoelectrically-assisted Tribometer and Optical Profilometer

Experiments on Ultrasonic Lubrication Using a Piezoelectrically-assisted Tribometer and Optical Profilometer

Published on: September 28, 2015

相关概念视频

Design Example: Strain Gauge Bridge or Wheatstone Bridge

Design Example: Strain Gauge Bridge or Wheatstone Bridge

The utilization of strain gauges as transducers for converting mechanical strain into electrical signals is a common practice in various engineering applications. These strain gauges are frequently integrated into Wheatstone bridge circuits to accurately measure parameters such as force or pressure. Within this context, each element within the circuit exhibits a resistance that undergoes subtle variations when subjected to mechanical strain. The primary objective is to convert minuscule...

Distance Corrections

Distance Corrections

To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...