Title :
An accurate experimental apparatus for measuring losses in magnetic components
Author :
Sridhar, Shri ; Wolf, R.M. ; Odendaal, W.G.
Author_Institution :
Philips Res., Briarcliff Manor, NY, USA
Abstract :
An experimental apparatus has been designed and built to accurately measure losses in magnetic components. The apparatus consists of a highly conductive pedestal on which the device under test (DUT) is mounted. A heat flux sensor placed under the pedestal is used to measure the total heat generated in the DUT. The pedestal along with the heat-flux sensor is placed inside an evacuated chamber to minimize heat loss by convection. Calibration of the apparatus with power resistors showed that it is accurate to within 5% in the power range of interest. A detailed parametric analysis of the factors affecting the accuracy of the apparatus is presented. This apparatus is ideally suited for planar magnetic components
Keywords :
calibration; convection; heat measurement; loss measurement; test equipment; calibration; convection; detailed parametric analysis; device under test; heat flux sensor; heat loss minimisation; highly conductive pedestal; losses measurement; magnetic components; planar magnetic components; power resistors; total heat measurement; Copper; Electrical resistance measurement; Frequency measurement; Loss measurement; Magnetic flux; Magnetic losses; Magnetic sensors; Power transformer insulation; Temperature measurement; Thermal management;
Conference_Titel :
Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5589-X
DOI :
10.1109/IAS.1999.806029
