| 摘要 |
<p>A device (1) for absolute optical measurement of the level of a liquid (L) in a container (C), comprising a support (2), a vertical guide shaft (3, 30), a mobile float (9) capable of sliding along the guide shaft (3, 30) depending on the level of the liquid (L), a light source (6) and a photosensitive sensor (7) mounted on the support (2) and orientated towards the float (9), at least one reflecting block (11, 12, 110) mounted on the float (9) in such a way as to participate in the diversion of the beam emitted by the light source (6) towards the photosensitive sensor (7) and processing means (8) capable of controlling the light source (6) and of determining the absolute level of the liquid (L) in the container (C) from the numerical modulation of the received beam. The guide shaft (3, 30) comprises an optical sight (13, 130) deposited on the trajectory of the light beam between the light source (6) and the photosensitive sensor (7).</p> |
