This paper deals with the optimized noise measurement in semi-diffuse sound field. The optimized points of noise is measured at 63 for test motors(0.75[KW], 3.7[KW]). By this technique, background noise is calibrated by itself. Also it is easy to find...
This paper deals with the optimized noise measurement in semi-diffuse sound field. The optimized points of noise is measured at 63 for test motors(0.75[KW], 3.7[KW]). By this technique, background noise is calibrated by itself. Also it is easy to find where the strong noise is generated at induction motor, and to measure the magnitude of noise for each position. Therefore the proposed method can be applied to the design and estimate of the low-noise induction motors.