| 摘要 |
<p>The invention is related to an optical level sensor (1) for detection of liquid levels, said sensor (1) being mounted to a container or tank (9) comprising: a light source (2), a light detector (5) with a processing unit (6), and optical fibers (3), said fibres (3) comprising at least one input side (3.3) of the optical fibre, assigned to the light source (2) and reaching from the light source (2) into said container or tank (9), and at least one output side (3.4) of the optical fibre (3), assigned to the processing unit (6) via the light detector (5) and reaching from inside said container or tank (9) to the light source (2). A fibre collecting tube (12) is provided with support and guidance elements (4) which collect and guide all of the optical fibres (3, 3.3, 3.4) to different heights of the tank/container (9), each optical fiber (3) sensing a different liquid level.</p> |
