We conducted an "eddy current testing" analysis to detect surface defects on the conductor plate.
The eddy current testing (non-destructive testing) using the external field method has a significant analytical symmetry, which is divided into a conductor plate and a probe. The probe consists of two types of coils: an excitation coil and a differential detection coil. We calculated the eddy current distribution when a current with a frequency of 500 Hz was applied to the excitation coil of the probe, as well as the induced electromotive force in the differential detection coil. For more details, please download the catalog.
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【Features】 ○ The model is three-dimensional and analyzed using a full model. ○ The module used is PHOTO-EDDYjω, and coupled analysis with the external field was performed. ○ The external field calculations used in this example: → Both the detection coil model and the metal plate model are finite element models. These two models were created completely independently. ○ Advantages of creating models separately and using external field functionality: 1. By separating complex shapes that would be difficult to create as a single entity, the shape creation process can be simplified. 2. Even for meshes where movement is difficult due to slide interfaces, changes in the model's position are possible. 3. It is possible to solve far-field solutions that were difficult to achieve with the finite element method alone. ○ Analysis conditions: → Material properties (air): Relative permeability 1, electrical conductivity 0 [S/m] Material properties (18-10MO): Relative permeability 1, electrical conductivity 0.14×10^7 [S/m] Input conditions: 25,000 [AT] is evenly distributed to the coils of five finite element models (current density input). ● For more details, please contact us or download the catalog.
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At Photon, we are developing "electromagnetic field analysis software" that models and simulates products and components utilizing electromagnetic phenomena on a computer. In traditional design and development environments, the process has primarily revolved around trial and error through prototyping based on the experience of engineers and experiments with prototypes. However, conducting experiments using actual prototypes and analyzing the results requires significant time and cost. Moving forward, transitioning from an experimental and prototyping-based approach to an analysis-based design approach will be a crucial challenge for improving productivity, and establishing simulation technology as the core of analysis-based design techniques will be essential. In this context, Photon is developing and providing "analysis software" focusing on electromagnetic fields, as well as heat, vibration, and sound fields. By utilizing Photon's software, efficient development and design of various industrial products can be achieved. In this way, Photon aims to support users in reducing the number of prototypes, lowering development costs, and shortening development periods in their manufacturing environments, ultimately enhancing their competitiveness.