Loading patent…
AssigneeSick Engineering GmbH
InventorsUwe MELCHER, Jürgen REGEHR
Estimating the term…
An apparatus (10) for measuring the light scatter from a measured zone (12) is provided, the apparatus having a light transmitter (14) for transmitting a light beam (18) into the measured zone and having a light receiver (22) with a reception optics (24) for detecting light scattered in the measured zone (12), wherein an adjustment unit is provided to change between a measuring mode in which the optical axes of the light transmitter (14) and the reception optics (24) stand at an angle with respect to one another and intersect in the measured zone (12) and a test mode in which the optical axes of the light transmitter (14) and the reception optics (24) are aligned in parallel with one another, and wherein the light beam (18) successively sweeps over the reception optics (24) for recognizing contaminants. In this respect, the reception optics (24) is rotatably held at a displaceable rotary axle (32); and wherein the adjustment unit first rotates the reception optics (24) about the rotary axle in the test mode until the optical axis of the reception optics (24) is in parallel with the optical axis of the light transmitter (14) and then displaces the rotatable axle (32) together with the reception optics (24).
An apparatus (10) for measuring the light scattered from a measured zone (12), the apparatus having a light transmitter (14) for transmitting a light beam (18) into the measured zone (12) and having a light receiver (22) with a reception optics (24) for detecting light scattered in the measured zone (12), wherein an adjustment unit is provided to change between a measuring mode in which the optical axes of the light transmitter (14) and of the reception optics (24) stand at an angle with respect to one another and intersect in the measured zone (12) and a test mode in which the optical axes of the light transmitter (14) and of the reception optics (24) are aligned in parallel with one another, wherein the light beam (18) successively sweeps over the reception optics (24) for recognizing contaminants, and wherein the reception optics (24) is rotatably held at a displaceable rotary axle (32);
A method of testing a reception optics (24) of an apparatus for measuring the light scattered in a measured zone, the apparatus having a light transmitter (14) for transmitting a light beam (18) into the measured zone (12) and having a light receiver (22) with a reception optics (24) for detecting light scattered in the measured zone (12), wherein an adjustment unit is provided to change between a measuring mode in which the optical axes of the light transmitter (14) and of the reception optics (24) stand at an angle with respect to one another and intersect in the measured zone (12) and a test mode in which the optical axes of the light transmitter (14) and of the reception optics (24) are aligned in parallel with one another, wherein the reception optics (24) is scanned by a light beam (18) in a test mode in that the optical axis of the reception optics (24) is tilted until it is in parallel with the light beam (18) and is subsequently displaced in parallel, wherein the reception optics (24) is first tilted about a rotary axle (32) and the rotary axle (32) is subsequently displaced together with the reception optics (24).
Dependencies are inferred from the claim text.