Online and Real-Time Measurement of Magnetic Powder Dosage in Magnetic Particles Inspection (MPI) of Materials

材料磁粉检测 (MPI) 中磁粉剂量的在线实时测量

• 批准号: 132248
• 金额: $ 9.24万
• 依托单位: N.D.T. CONSULTANTS LIMITED
• 依托单位国家: 英国
• 项目类别: Feasibility Studies
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=132248
• 关键词: Online; Real; Time; Measurement; Magnetic

The feasibility of a method to provide assurance of the compliance of inspections of component quality tointernational standards will be assessed. The method applies to magnetic particle inspections which detectcracks in metallic components and involves the use of a high frequency electromagnetic sensor. The sensorresonates at a frequency in the microwave frequency band. The working fluid used in the inspection is a dilutesuspension of ferromagnetic particles, in which each particle is coated with a fluorescent dye. Particles willcollect in the magnetic fields around cracks in the component being inspected and can be found via theirfluorescence. The sensor will measure the concentration of particles in the fluid during the inspection, a sampleof the fluid being drawn from the testing apparatus and pumped through the sensor before being returned tothe testing apparatus. The current method of measuring particle concentration is performed prior toinspections and takes several hours, the new method is a real-time solution which is also more appropriate toautomatic data logging.

将评估一种保证部件质量检查符合国际标准的方法的可行性。该方法适用于磁粉检测，它检测金属部件中的裂纹，并涉及到使用高频电磁传感器。该传感器在微波频带内的频率上进行共振。检查中使用的工作液是铁磁性颗粒的稀释悬浮液，其中每个颗粒都涂有荧光染料。粒子会聚集在被检查部件裂纹周围的磁场中，并通过它们的荧光被发现。传感器将在检查过程中测量流体中的颗粒浓度，从测试设备中提取流体样本，并将其泵入传感器，然后返回到测试设备。目前的颗粒浓度测量方法是在检测之前进行的，需要几个小时，新的方法是一种实时的解决方案，也更适合于自动数据记录。