| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve an electric field measuring device for testing EMC capable of allowing one to visually confirm the measurement result of electric field strength easily and precisely prescribing the measurement range of the electric field strength at low costs. <P>SOLUTION: The electric field strength measuring device 20 has a minute loop antenna 24 as a reception antenna for receiving radio waves for testing EMC (in detail, immunity test), and displays the level of reception signals from the minute loop antenna 24 in steps by utilizing a plurality of light-emitting diodes for composing a display section 26. A measuring circuit for determining the number of light-emitting diodes to be lit by detecting the reception signals and comparing the signal level with a reference voltage is provided in a body 22. The supply voltage is generated by smoothing one portion of the signal detected by the reception signals. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
