HiF-PD: Development of advanced performance eddy current testing technology based on high frequency phase discrimination.

无损检测被广泛应用于许多行业，在这些行业中，需要检测工程部件中的异常和缺陷，而不是破坏它们。最苛刻的应用是在石油和天然气、航空航天和发电等行业使用的设备中，这些行业的零部件对安全至关重要，具有特别高的价值，并且受到极端运行条件的影响。在制造和服务过程中，无损检测可以识别例如由制造或材料问题引起的裂缝、表面涂层的分层、气孔以及循环和热载荷引起的疲劳引起的裂缝。为了满足众多不同的应用需求，无损检测中使用了许多不同的技术；这些技术包括超声波、磁粉、液体染料渗透剂、视觉、涡流和X射线。基于涡流在导电材料中诱导的磁场扰动的技术(如法拉第在19世纪发现的，自20世纪50年代以来一直用于商业无损检测)在许多应用中都很有用，包括检测金属部件的表面和近亚表面缺陷。然而，这项技术的能力并没有跟上它被用来评估的组件的进步。手工液体染料渗透技术自19世纪末以来一直在类似的应用中使用。该工艺在技术熟练的人手中具有很高的“分辨率”，仍然是对一些最先进的工程部件的表面缺陷进行无损检测的支柱。然而，该技术有许多缺点，包括结果解释的主观性、高运营成本、有毒消耗品、测试时间长，以及在测试之前需要彻底准备表面。EddySense使用创新的电子和分析技术，正在开发新一代涡流检测能力。我们的技术将允许在更广泛的材料中检测出比目前最先进的技术所能检测到的更小的缺陷。在制造商和维修供应商目前依赖陈旧的液体染料渗透技术的地方，我们的技术将为参与我们一些最先进工程的人所面临的挑战提供一个更清洁、更安全和更可靠的解决方案。“

"Non destructive testing is used extensively across a number of industries, where there is a need to detect anomalies and defects in engineered components, without destroying them. The most demanding applications are in equipment used in industries such as oil and gas, aerospace, and power generation, where components are safety-critical, of particularly high value and subject to extreme operating conditions. Non destructive testing, during manufacturing and service can identify, for example, cracks caused by manufacturing or material issues, delamination of surface coatings, porosity, and cracks caused by fatigue due to cyclic and thermal loads. To address a multitude of different application requirements, there are many different techniques used in non-destructive testing; these include ultrasound, magnetic-particle, liquid dye penetrant, visual, eddy current, and X-rays.Techniques based on magnetic disturbances induced in conductive materials by eddy currents (as discovered by Faraday in the 19th Century, and employed in non destructive testing commercially since the 1950s) are useful in a number of applications, including the detection of surface and near sub-surface defects in metal parts. However, the technology's capabilities have not kept pace with the advances in the components it is employed to evaluate. Manual liquid dye penetrant techniques have been in use since the late 19th century in similar applications. The process has high 'resolution' in skilled hands, and remains the mainstay of non destructive testing for surface defects in some of the most advanced engineered components. However, the technique has a number of disadvantages, including the subjective nature of interpretation of results, high operating costs, toxic consumables, lengthy testing times, and the need to thoroughly prepare the surface prior to testing.Using innovative electronics and analysis techniques, Eddysense is developing the next generation of capability in eddy current testing. Our technology will allow for detection of smaller defects, in a wider range of materials, than is currently possible with the state of the art. Where manufacturers and maintenance providers are currently reliant on the aged liquid dye penetrant technique, our technology will provide a much cleaner, safer and more reliable solution to the challenges of those involved in some of our most advanced engineering."