Measuring method to determine the noise emission of an...

Details Measuring method to determine the noise emission of an... Measuring method to determine the noise emission of an...

2007-01-23

2007-01-23

Chapman, John E. (Department: 2856)

Measuring and testing

Vibration

Sensing apparatus

C073S660000

Reexamination Certificate

active

10976700

ABSTRACT:
A measuring method to determine the noise emission of an electric motor is proposed in which the vibrational excitation of the running electric motor is measured by a laser vibrometer device and this measured vibrational excitation is correlated with a noise level.

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Hofer et al., “Die Akustik des neuen V6-TDI-Motors im Audi A8”, ATZ Automobiltechnische Zeitschrift 99, 1997, pp. 414-423.
Castellini et al., “Automotive Components Vibration Measurements by Tracking Laser Doppler Vibrometry: Advances in Signal Processing”, Measurement Science and Technology 13 (2002), pp. 1266-1278.
Beeck et al., “Laser Metrology—A Diagnostic Tool in Automotive Development Processes”, Optics and Lasers in Engineering 34 (2000), pp. 101-120.

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