Automotive Engineering
Automotive Engineering

Automotive Engineering

The main absorber substrate is based on expanded polystyrene , which is volumetrically loaded with lossy materials, and environmentally pleasant fire retardants. Advanced uniform loading in the manufacturing course of leads to superior RF efficiency an excellent absorption uniformity. The closed cell construction of this type of absorber makes it suitable for use even in excessive humidity environments.

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An various polyurethane absorber typically 36 inches in depth, EHP 36, can be utilized with improved excessive frequency performance due largely to the increased material size. But, with out the advantage of the matching ferrite material used in the hybrid, the polyurethane only absorber suffers from lowered low frequency efficiency. Figure three Travel News exhibits the typical performance of this materials and its compliance with the CISPR 25 restrict. One of essentially the most efficient and value effective is a polystyrene based mostly absorber that combines a excessive-efficiency ferrite tile with a polystyrene EMC absorber, having 60cm x 60cm base and 60cm peak.

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These features all contribute to offering for a better controlled and predictable chamber take a look at setting. Figure 2 presents the performance of one type of hybrid polystyrene absorber. Magnetic Field RI testing on the car stage would not need a shielded enclosure. ESD test on the automobile stage would not need a shielded enclosure.