| 摘要 |
<p>A differential output optical fiber displacement sensor (20) includes a structure (22) subject to mechanical displacement over a displacement range. A pair of optical fibers (24) is positioned so that the first optical fiber (26) and the second optical fiber (34) bend inversely to each other over at least part of the displacement range when the structure (22) experiences mechanical displacement. The light transmitted through each of the optical fibers is measured, and a differential calculator (74) determines the difference between the two transmitted light signals.</p> |
