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标准噪声源
reference sound source
- 本文介绍了一种用加热金属丝来产生噪声的微波标准噪声源。
In this paper a microwave standard noise source which produces noise by healing a metal filament is described. - 对如何确定空气调节设备噪声的标准、声源点及测定方法提出若干建议。
Presents several proposals as how to specify the noise criteria, noise source point and measurement method for air conditioning equipment. - 采用白噪声信号作为标准声源的输入信号，在常温无气流条件下对消声器实物模型进行了静态放声试验。
After a white noise signal has been taken as the input of a standard sound source, a static acoustic test is conducted for a prototype silencer without air flow and at the normal temperature.
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