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US 7,804,588 B2Granted
Measuring device for optical and spectroscopic examination of a sample
AssigneeDeere & Company
InventorsGeorg Kormann, Rico Priesnitz, Nico Correns, Michael Rode
Life of this patent
Estimating the term…
Abstract
A measuring device for optical and spectroscopic examination of a sample includes a housing, a first light source, a window, an optical spectrometer with a dispersive element and a number of detector elements and which can record light from the first light source which is indirectly reflected by the sample and reenters the housing through the window, an electronic camera whose incidence opening is directed onto the sample, through the window, and an electronic evaluation device which is connected to an image sensor of the camera and to the detector elements. The camera may be assigned a second light source.
Claims12
A measuring device for optical and spectroscopic examination of a sample, the device comprising:
- a housing;
- a first light source arranged in the housing;
- a window fitted in a wall of the housing and having a transparent pane which is arranged in such a way that light from the first light source can fall onto a sample arranged outside the housing;
- an optical spectrometer arranged in the housing and having a dispersive element and a number of detector elements which optical spectrometer can record light from the first light source which is indirectly reflected by the sample and re-enters the housing through the window;
- an electronic camera which is arranged in the housing and whose incidence opening is directed onto the sample, through the window;
- and
- an electronic evaluation device which is connected to an image sensor of the camera and to the detector elements;
- where a second light source is arranged in the housing and is arranged in such a way that light from the second light source can fall onto the sample through the window,
- and where the camera is arranged in such a way that it can record light from the second light source which is reflected by the sample and re-enters the housing through the window, and
- wherein the first light source and the spectrometer are arranged diametrically opposite an optical axis of the window, in that the second light source and the camera are likewise arranged diametrically opposite the optical axis of the window, and in that the first light source and the second light source are arranged angularly offset in relation to the optical axis of the window.
7 more elements
A measuring device for optical and spectroscopic examination of a sample, the device comprising:
- a housing;
- a first light source arranged in the housing;
- a window fitted in a wall of the housing and having a transparent pane which is arranged in such a way that light from the first light source can fall onto a sample arranged outside the housing;
- an optical spectrometer arranged in the housing and having a dispersive element and a number of detector elements which optical spectrometer can record light from the first light source which is indirectly reflected by the sample and re-enters the housing through the window;
- an electronic camera which is arranged in the housing and whose incidence opening is directed onto the sample, through the window;
- and
- an electronic evaluation device which is connected to an image sensor of the camera and to the detector elements;
- where a second light source is arranged in the housing and is arranged in such a way that light from the second light source can fall onto the sample through the window,
- and where the camera is arranged in such a way that it can record light from the second light source which is reflected by the sample and re-enters the housing through the window,
- wherein the second light source can be operated in a pulsed operation.
7 more elements
A measuring device for optical and spectroscopic examination of a sample, the device comprising:
- a housing;
- a first light source arranged in the housing;
- a window fitted in a wall of the housing and having a transparent pane which is arranged in such a way that light from the first light source can fall onto a sample arranged outside the housing;
- an optical spectrometer arranged in the housing and having a dispersive element and a number of detector elements which optical spectrometer can record light from the first light source which is indirectly reflected by the sample and re-enters the housing through the window;
- an electronic camera which is arranged in the housing and whose incidence opening is directed onto the sample, through the window;
- and
- an electronic evaluation device which is connected to an image sensor of the camera and to the detector elements;
- where a second light source is arranged in the housing and is arranged in such a way that light from the second light source can fall onto the sample through the window,
- and where the camera is arranged in such a way that it can record light from the second light source which is reflected by the sample and re-enters the housing through the window,
- wherein the electronic evaluation device is configured to use image sensor signals on the camera to check to correct parameters of the sample with the aid of the output signals of the detector elements of the spectrometer.
7 more elements
A self-propelled harvesting machine comprising:
- a housing;
- a first light source arranged in the housing;
- a window fitted in a wall of the housing and having a transparent pane which is arranged in such a way that light from the first light source can fall onto a sample arranged outside the housing;
- an optical spectrometer arranged in the housing and having a dispersive element and a number of detector elements which optical spectrometer can record light from the first light source which is indirectly reflected by the sample and re-enters the housing through the window;
- an electronic camera which is arranged in the housing and whose incidence opening is directed onto the sample, through the window;
- and
- an electronic evaluation device which is connected to an image sensor of the camera and to the detector elements;
- where a second light source is arranged in the housing and is arranged in such a way that light from the second light source can fall onto the sample through the window,
- and where the camera is arranged in such a way that it can record light from the second light source which is reflected by the sample and re-enters the housing through the window, and
- wherein the first light source and the spectrometer are arranged diametrically opposite an optical axis of the window, in that the second light source and the camera are likewise arranged diametrically opposite the optical axis of the window, and in that the first light source and the second light source are arranged angularly offset in relation to the optical axis of the window.
7 more elements
Dependencies are inferred from the claim text.