| 摘要 |
A strain sensor system for determining the strain on a wind turbine component, in which the strain sensor is insensitive to the effect of twisting motions or edge-wise bending of the component. The system comprises one or more strain sensors, each comprising one or more strain sensing devices, such as an optical fibre 13 or other mechanical, electrical or optical strain sensing device, arranged in a path that encloses a region of the component and that has rotational symmetry of order three or more, such as a path in the shape of a circle or regular polygon. |
