| 摘要 |
PURPOSE:To continuously alter a resonance frequency by connecting a variable capacitor between split nonprojections in a high frequency magnetic field generation/detector used in a unclear magnetic resonance apparatus. CONSTITUTION:After the projections of a pair of conductor plates 1, e.g., wings 1b are approached, the wings 1b are electrically connected. One of the plates 2 is cut at its nonprojection, i.e., a vertical band 1a to be split, and a variable capacitor 4 is connected between the bands 1a. The resonance frequency of a stereoscopic circuit which operates as an equivalent series resonator is adjusted by the capacitor 4. Thus, the resonance frequency of an LC series resonator can be freely adjusted to respond to a magnetic field of wide range.
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