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失真参数是无线电计量常用的参数之一。目前用于检定通用失真仪的“失真仪检定装置”,如国产的“B_0-5型”、“B_0-13型”等,广泛地分布在全国各地,多达500余台。然而由于缺少更高一级的失真标准设备对其进行出厂检定和周期检定,故仅局限于分项测试,不能给出其输出的标准失真度实际值及工作误差。为此,浙江省计量检定所和成都市计量测试所共同研制成功了“SB-82型音频失真标准”,初步解决了整体检定“失真仪检定装置”输出标准失真度综合工作误差的技术问题。 SB-82型音频失真标准,由一台宽频带的
Distortion parameters are one of the most commonly used parameters for radio metering. At present, the “Distortion Meter Verification Device” used for verification of universal distorter is widely distributed in all parts of the country with more than 500 sets of “B_0-5 type” and “B_0-13 type” made in China. However, due to the lack of a higher level of distortion of the standard equipment for its factory calibration and periodic verification, it is only limited to sub-test, can not be given its output of the actual value of the standard distortion and working error. To this end, Zhejiang Metrology Institute and Chengdu Institute of Metrology jointly developed the “SB-82-type audio distortion standard” to initially solve the overall verification “Distortion Instrument Verification Device” output standard distortion of the overall work of technical errors. SB-82 audio distortion standard, by a wide band