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During development of electronic products, several measurements are performed to ensure the electromagnetic disturbances are in such levels permitted by costumer requirements. Normally these tests are performed in certified laboratories. This usually causes high impact on timing plan and development costs. In order to reduce the time and cost involved on pre-compliance EMC tests, a Transverse Electromagnetic (TEM) cell was used as a tool for fast analysis of proposed design solutions during development of a brushless motor controller. The TEM was used as an Antenna to measure the electromagnetic disturbances (magnetic field) generated by the EUT (Equipment Under Test). A mathematical correlation between the voltage measured using the Antenna (TEM) and results found in a Certified Laboratory are compared and presented.

As part of any water pump development for engine cooling system, the interaction between materials with different coefficient of thermal expansion is unexceptional. Though in very specific applications where the coolant temperature is over 115°C several factors and variables can cause movement between parts because of the interference and coefficient of thermal expansion interaction combined with engine vibration and external loads. These factors were listed and evaluated considering several variables being validated physically and by simulation resulting on an optimized method to enhance this kind of fixation.