| 摘要 |
<p>Provided is a fuel oil gauge (15), comprising: a columnar interior structural body (27) formed from an insulator; a hollow cylindrical exterior structural body (23) formed from an insulator, which is positioned on the exterior circumference side of the interior structural body (27) around the total perimeter thereof with a gap therebetween; an interior electrode (29) which is affixed to the exterior circumference face of the interior structural body (27); and an exterior electrode (25) which is affixed to the interior circumference face of the exterior structural body (23). The fuel oil gauge (15) measures capacitance between the interior electrode (29) and the exterior electrode (25), and detects the level of fuel present between the interior electrode (29) and the exterior electrode (25). The exterior structural body (23) further comprises a plurality of exterior side through holes (31) that allow electrical charge to move from the exterior circumference face thereof to the exterior electrode (25).</p> |
