影响骚扰功率测量结果的因素分析
摘要 实验室能力验证计划能够保证电磁兼容实验室测试结果的一致性,而比对实验是其核心部分。从骚扰功率比对实验过程中发现了对测试有重要影响的因素,并进行了后续的试验。借助功率吸收钳校准的数学模型,说明了测试线到屏蔽墙的距离和辅助功率吸收钳对测试的影响,并通过实验数据分析了这两种因素对测试影响的规律,最后给出了对测试结果影响的推断。
关键词 实验室比对;骚扰功率测量;功率吸收钳校准模型;测试线到屏蔽墙之间的距离;辅助吸收钳
Abstract The plan of laboratory detection capability evaluation can keep the data from
many EMC laboratories consistent, and inter-laboratory comparison is the hard core
part of the plan.Factors which can influence effect the disturbance power test badly are
found in the inter-laboratory comparison tests,and then extend tests are carried out.
Based on the model for the calibration of absorbing clamp,the effects of the secondary
absorbing clamp and the distance between the lead under test and the wall of the
shield room are simply analyzed by the data of disturbance power test. Moreover, a
deduced conclusion about the effects of factors is given in order to avoid the influence
in the disturbance power test.
Keywords inter-laboratory comparison; disturbance power test;model for the
calibration of absorbing clamp;distance between the lead under test and the shield
wall;secondary absorbing clamp
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