Transmission Loss Measurement with and without an Anechoic Termination Tenneco

Format:

Conference/Event

Author/Creator:

Zheng, Shi, author.

Conference Name:

SAE 2009 Noise and Vibration Conference and Exhibition (2009-05-19 : St. Charles, Illinois, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2009

Summary:

The definition method and the two load/source method of a transmission loss test of an automotive tuning device are discussed in this paper. For the definition method, the accuracy penalty due to the imperfect anechoic termination quality is studied based on an empirical acoustic model of glass-wool and the best practice of constructing an anechoic termination is attempted. The conclusion is verified with numerical simulations. For the two load/source method, the difference in the two source/load impedances compounded with the error of measured acoustic pressures, as related to transmission loss accuracy, is discussed and demonstrated

Notes:

Vendor supplied data

Publisher Number:

2009-01-2035

Access Restriction:

Restricted for use by site license