Abstract：Basic principles and common methods of NSA (Normalized Site Attenuation) test for the
performance of the semi-anechoic chamber were introduced first in this paper. The theoretical value of
NSA tests under the conditions of 3 m and 10 m range semi-anechoic chamber were calculated and the
general test procedures of EMC (Electromagnetic Compatibility) NSA were analyzed. Then, the semianechoic
chamber was tested preliminarily and the actual measurement data was achieved. Finally,
the general factors affecting the test results were discussed. And the evaluation results showed that the
chamber could work normally.
王权，苏宗文，李澍，任海萍. 半电波暗室归一化场地衰减测试探讨[J]. 中国医疗设备, 2016, 31(10): 36-39.
WANG Quan, SU Zong-wen,
LI Shu, REN Hai-ping. Discussion on Calculation and Measurement of Normalized Site Attenuation
of Semi-Anechoic Chamber. China Medical Devices, 2016, 31(10): 36-39.
