| 摘要 |
<p>A capacitive displacement meter of co-axial set-up is disclosed. At least one cylindrical inner electrode element is placed coaxially within at least one cylindrical hollow outer electrode element. The inner and outer electrode elements are coaxially movable relatively to each other. One electrode element comprises three spaced, aligned, cylindrical electrodes, of which the end electrodes are equally long and the intermediate middle electrode is relatively short. The other electrode element comprises at least one electrode extending coaxially relatively to the electrodes of said one electrode element and, in an inoperative position, being at the level of the middle electrode. The middle electrode and the two end electrodes are each provided with terminals.</p> |
