Data processing: measuring – calibrating – or testing – Calibration or correction system – Sensor or transducer
Patent
1998-02-25
2000-10-03
Wachsman, Hal
Data processing: measuring, calibrating, or testing
Calibration or correction system
Sensor or transducer
702 93, 702 95, 35613903, 356375, G01B 1103
Patent
active
061285854
ABSTRACT:
The sensor array is positioned at a vantage point to detect and calibrate its reference frame to the external reference frame demarcated by light-emitting reference indicia. The sensor array encompasses a wide view calibration field and provides data indicating the spatial position of light sources placed within the calibration field. A tetrahedron framework with light-emitting diodes at the vertices serves as a portable reference target that is placed in front of the feature sensor to be calibrated. The sensor array reads and calibrates the position of the light-emitting diodes at the vertices while the structured light of the feature sensor is projected onto the framework of the reference target. The structured light intersects with and reflects from the reference target, providing the feature sensor with positional and orientation data. These data are correlated to map the coordinate system of the feature sensor to the coordinate system of the external reference frame. A computer-generated virtual image display compares desired and actual sensor positions through a real time feedback system allowing the user to properly position the feature sensor.
REFERENCES:
patent: 4645348 (1987-02-01), Dewar et al.
patent: 4841460 (1989-06-01), Dewar et al.
patent: 4964722 (1990-10-01), Schumacher
patent: 5090803 (1992-02-01), Ames et al.
patent: 5329469 (1994-07-01), Watanabe
patent: 5388059 (1995-02-01), De Menthon
patent: 5552883 (1996-09-01), Busch-Vishniac et al.
patent: 5570190 (1996-10-01), Terawahi et al.
patent: 5801834 (1998-09-01), Danielson et al.
Perceptron, Inc.
Wachsman Hal
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