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本文叙述采用电平倍增的三厘米波段自校准法衰减测量装置。该装置在0—42分贝的衰减测量量程内,达到的不确定度优于±5×10~(-4)。
This article describes the use of level doubling of the three centimeter band self-calibration attenuation measurement device. The device achieves an uncertainty of better than ± 5 × 10 -4 in the range of 0-42 dB attenuation measurement.