Method and arrangement in a measuring system
First Claim
1. A method for imaging the characteristics of an object by means of a measuring system, in which at least one of the measuring system and/or the object is moved in relation to one another in a predefined direction of movement, the object being moved in relation to the measuring system, in which method the object is illuminated by means of incident light, which has limited extension in the direction of movement, and light reflected from the object is detected by means of an imaging sensor arranged on the same side of the object as the incident light, the image-processing sensor converting the detected light into electrical charges, according to which a digital representation of the object is created, wherein the light is made to strike the object at a predetermined distance from the imaging sensor viewed in the direction of movement of the object, and that information on the geometric profile of the object and information on the light scatter in a predetermined area around the said profile is simultaneously read out from the digital representation.
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Accused Products
Abstract
The present invention relates to a method and an arrangement for representing the characteristics of an object with a measuring system, in which either the measuring system or the object is designed to move in relation to one another in a predefined direction of movement. The object preferably is designed to move in relation to the measuring system. At least one light source is designed to illuminate the object with a light which is incident upon the object and has a limited extension in the direction of movement. An imaging sensor, which is arranged on the same side of the object as the light source is designed to pick up light reflected from the object and to convert this into electrical charges. An image-processing unit is furthermore designed to create a digital representation of the object from said electrical charges. The light source is arranged at a predetermined distance from the imaging sensor viewed in the direction of movement, and the image-processing unit is designed to simultaneously read out information on the geometric profile of the object and information on the light scatter in a predetermined area around said profile.
37 Citations
16 Claims
- 1. A method for imaging the characteristics of an object by means of a measuring system, in which at least one of the measuring system and/or the object is moved in relation to one another in a predefined direction of movement, the object being moved in relation to the measuring system, in which method the object is illuminated by means of incident light, which has limited extension in the direction of movement, and light reflected from the object is detected by means of an imaging sensor arranged on the same side of the object as the incident light, the image-processing sensor converting the detected light into electrical charges, according to which a digital representation of the object is created, wherein the light is made to strike the object at a predetermined distance from the imaging sensor viewed in the direction of movement of the object, and that information on the geometric profile of the object and information on the light scatter in a predetermined area around the said profile is simultaneously read out from the digital representation.
- 9. An arrangement for representing the characteristics of an object by means of a measuring system, in which either the measuring system or the object is designed to move in relation to one another in a predefined direction of movement, the object being designed to move in relation to the measuring system, which arrangement comprises at least one light source designed to illuminate the object with a light which is incident upon the object and has a limited extension in the direction of movement, the arrangement further comprising an imaging sensor, which is arranged on the same side of the object as the light source and is designed to pick up light reflected from the object and to convert this into electrical charges, an image-processing unit being designed to create a digital representation of the object from said electrical charges, wherein the light source is arranged at a predetermined distance from the imaging sensor viewed in the direction of movement, and that the image-processing unit is designed to simultaneously read out information on the geometric profile of the object and information on the light scatter in a predetermined area around said profile.
Specification