发明名称 APPARATUS AND METHOD FOR MEASUREMENT OF ELECTRIC FIELD, PROGRAM AND RECORDING MEDIUM
摘要 PROBLEM TO BE SOLVED: To specify the generation source, the transmission route and the radiation source of undesired electromagnetic waves so as to be sorted. SOLUTION: The electric-field measuring apparatus is provided with a reference-signal input 101 by which a measurement signal in an arbitrary position of an object 102 to be measured is detected as a reference signal, an electric field sensor 103 which measures an electric field generated from the object 102 to be measured, and a display part 107. A scanning part 104 enables the sensor 103 to measure the electric field in a plurality of positions near the object 102 to be measured, a signal comparison part 105 and a processing part 106 calculate a field-strength distribution phase change in the object 102 to be measured on the basis of the reference signal detected by the input part 101, and the calculated field-strength distribution phase change is displayed on the display part 107. COPYRIGHT: (C)2003,JPO
申请公布号 JP2003185689(A) 申请公布日期 2003.07.03
申请号 JP20010389617 申请日期 2001.12.21
申请人 CANON INC 发明人 HIRAI KOJI
分类号 G01R29/08;G01R29/14;(IPC1-7):G01R29/08 主分类号 G01R29/08
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