| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact, high-sensitive electrical field sensor and a electrical field sensor system. SOLUTION: A plurality of inductors L1 to L4 with different winding numbers mutually are winded around a rod-shaped ferrite 1 and a plurality of capacitors C1 to C5 forming a plurality of filter circuits composes an electrical field sensor together with those inductors to derive filtered wave output of a plurality of those filter circuits as the sensor output. According to such a formation the compact, high-sensitive electrical field sensor is obtained within broad bandpass centering in medium wave band. COPYRIGHT: (C)2007,JPO&INPIT
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