Solar cell anomaly detection method and apparatus

Details Solar cell anomaly detection method and apparatus Solar cell anomaly detection method and apparatus

1980-02-04

1981-11-17

Tokar, Michael J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

324403, G01R 104

Patent

active

043014097

ABSTRACT:
A method is provided for detecting cracks and other imperfections in a solar cell, which includes scanning a narrow light beam back and forth across the cell in a raster pattern, while monitoring the electrical output of the cell to find locations where the electrical output varies significantly. The electrical output can be monitored on a television type screen containing a raster pattern with each point on the screen corresponding to a point on the solar cell surface, and with the brightness of each point on the screen corresponding to the electrical output from the cell which was produced when the light beam was at the corresponding point on the cell. The technique can be utilized to scan a large array of interconnected solar cells, to determine which ones are defective.

REFERENCES:
patent: 3039056 (1962-06-01), Mang et al.
patent: 4051437 (1977-09-01), Lile et al.

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