| 摘要 |
<p>A strain monitoring device comprises an elongate radiation guide, typically an optical fibre, whose cross-section is modified in accordance with a predetermined mathematical relationship over a portion of its length at which it is emplaced in use on a material which is to be subject to strain. When energy is transmitted down the radiation guide, the output can be measured and converted to a strain value and as a result of a predeterminable correlation relationship between radiation output and such strain.</p> |
