Emagnetic (EM) Modelling is an Alternative or Complementary Approach to Practical EM Measurements
Electromagnetic Modelling may be used as an alternative or complementary approach to practical electromagnetic (EM) measurements, in cases where simplifications and realistic assumptions can be made.
York EMC Services uses a wide range of computational modelling tools ranging from Matlab and in-house developed code to commercial full wave solvers such as Concept and Comsol based on a variety of techniques such as the Transmission Line Matrix (TLM) method.
Our experience of using these tools means cost effective methods can be readily identified and employed to meet specific requirements e.g. whether to use time or frequency domain techniques.
Powerful computational tools can also greatly assist in analysing and presenting the large amounts of data that can result from measurement programmes such as site surveys or EM mapping.
In one example, concerns about interference to a signalling system on a metro network was investigated by performing simulations in the frequency range from <50 Hz to 200 kHz, using train-borne antennas, with a resolution of ~10m with over 90 km of track being mapped.
York EMC Services has pioneered the use of Intermediate Level Circuit Modelling (ILCM) as a computational technique for rapid solution of EM problems. Where applicable, the technique offers solutions 3 to 4 orders of magnitude faster than other full wave solver computational techniques; making the difference between having a solution in seconds or days.
Contact us for more information.