IEC 61012-1990
在有超声情况下测量可闻声用滤波器
Filters for the measurement of audible sound in the presence of ultrasound
IEC 61012-1990 发布历史
Defines the electrical characteristics of a U-weighting filter mainly for use with sound level meters meeting the requirements of IEC 651. Where the measurement of the ultrasonic component frequencies is required, the practice is to measure the unweighte
IEC 61012-1990由国际电工委员会 IX-IEC 发布于 1990-01。
IEC 61012-1990 在中国标准分类中归属于: L18 滤波器、延迟线，在国际标准分类中归属于: 17.140.01 声学测量和噪声抑制综合。
IEC 61012-1990的历代版本如下：
- 2004 IEC 61012-1-2004
- 1990-01 IEC 61012-1990 在有超声情况下测量可闻声用滤波器
- 适用范围
- Defines the electrical characteristics of a U-weighting filter mainly for use with sound level meters meeting the requirements of IEC 651. Where the measurement of the ultrasonic component frequencies is required, the practice is to measure the unweighte