| 摘要 |
The invention provides an optical sensor (10) arranged to monitor the ratio of the constituent components of a mixed system (14) where an optical characteristic of the system is dependant upon that ratio. The sensor (10) comprises first fibre optic means (16) for conducting light to the flow passage (12) wherethrough the mixed fluid system (14) flows, second fibre optic means (22) for conducting light returned therefrom to a means for detecting changes in the returned light and for determining the ratio of the constituent components of the system (14) in dependance upon the detected changes. Particularly, a fuel management system is described where the optical sensor is used to monitor the vapour/liquid ratio in a fuel supply to an engine. |
