SAE J184-1998
(R)声音数据采集系统鉴定
(R) Qualifying a Sound Data Acquisition System
2014-08
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- 标准号
- SAE J184-1998
- 发布
- 1998年
- 发布单位
- 美国机动车工程师协会
- 替代标准
- SAE J184-2014
- 当前最新
- SAE J184-2014
- 适用范围
- Various SAE vehicle sound level measurement procedures require use of a sound level meter which meets the Type 1 or Type 2 requirements of ANSI S1.4-1983, or an alternative system which can be proved to provide equivalent test data. The purpose of this SAE Recommended Practice is to provide a procedure for determining if a sound data acquisition system (SDAS) has electro-acoustical performance equivalent to such a meter. By assuring equivalent performance of the test instrumentation, the equivalence of test data is assured. Two general configurations of sound data acquisition systems will be encompassed. The first configuration consists of instrument sections which perform as a sound level meter. The second configuration is a system which records data for later processing. The intent of this document is to establish guidelines which permit the test engineer to insure equivalence of sound data acquisition systems to a sound level meter. It requires that the test engineer have a working knowledge of the characteristics of the sound data being measured.