| 摘要 |
An apparatus is disclosed for measuring the angular position of a movable part. The method and apparatus comprise at least two resonators formed by coupled slow-wave structures, e.g. coupled spirals, and a movable target. The angular position of the target is representative of the angular position of the movable part. A change in the angular position of the target causes a change in electrodynamic parameters of the resonators. The change in the electrodynamic parameters is converted to a reading of angular position of the target with respect to the resonators. An electromagnetic field is excited in the resonators at a frequency at which electromagnetic parameters of the resonators depend upon the position of the target.
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