SYSTEMS AND METHODS FOR REAL TIME MEASUREMENT OF SURFACE CURVATURE AND THERMAL EXPANSION OF SMALL SAMPLES
Systems and methods for measuring a curvature radius of a sample. The methods comprise: emitting a light beam from a laser source in a direction towards a beam expander; expanding a size of the light beam emitted from the laser source to create a broad laser beam; reflecting the broad laser beam off...
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| creator | Ermakov, Alexei Garfunkel, Eric Li, Xiuyan Gustafsson, Torgny Feldman, Leonard C |
| description | Systems and methods for measuring a curvature radius of a sample. The methods comprise: emitting a light beam from a laser source in a direction towards a beam expander; expanding a size of the light beam emitted from the laser source to create a broad laser beam; reflecting the broad laser beam off of a curved surface of the sample; creating a plurality of non-parallel laser beams by passing the reflected broad laser beam through a grating mask or a biprism; using the plurality of non-parallel laser beams to create an interference pattern at a camera image sensor; capturing a first image by the camera image sensor; and processing the first image by an image processing device to determine the curvature radius of the sample. |
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| subjects | CALCULATING COMPUTING COUNTING IMAGE DATA PROCESSING OR GENERATION, IN GENERAL MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING |
| title | SYSTEMS AND METHODS FOR REAL TIME MEASUREMENT OF SURFACE CURVATURE AND THERMAL EXPANSION OF SMALL SAMPLES |
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