Method and apparatus for measuring areas of photoelectric cells and photoelectric cell performance parameters
Abstract
A laser scanning system for scanning the surface of a photovoltaic cell in a precise, stepped raster pattern includes electric current detecting and measuring equipment for sensing the current response of the scanned cell to the laser beam at each stepped irradiated spot or pixel on the cell surface. A computer is used to control and monitor the raster position of the laser scan as well as monitoring the corresponding current responses, storing this data, operating on it, and for feeding the data to a graphic plotter for producing a visual, color-coded image of the current response of the cell to the laser scan. A translation platform driven by stepper motors in precise X and Y distances holds and rasters the cell being scanned under a stationary spot-focused laser beam.
- Inventors:
-
- Lakewood, CO
- Fort Collins, CO
- Issue Date:
- Research Org.:
- Midwest Research Institute, Kansas City, MO (United States)
- OSTI Identifier:
- 866443
- Patent Number(s):
- 4712063
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
H - ELECTRICITY H02 - GENERATION H02S - GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- DOE Contract Number:
- AC02-83CH10093
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- method; apparatus; measuring; photoelectric; cells; cell; performance; parameters; laser; scanning; surface; photovoltaic; precise; stepped; raster; pattern; electric; current; detecting; equipment; sensing; response; scanned; beam; irradiated; spot; pixel; computer; control; monitor; position; scan; monitoring; corresponding; responses; storing; data; operating; feeding; graphic; plotter; producing; visual; color-coded; image; translation; platform; driven; stepper; motors; distances; holds; rasters; stationary; spot-focused; cell performance; focused laser; stepper motors; stepper motor; electric current; laser beam; photovoltaic cell; measuring equipment; cell surface; laser scanning; current response; platform driven; photoelectric cell; laser scan; /324/136/250/
Citation Formats
Osterwald, Carl R, and Emery, Keith A. Method and apparatus for measuring areas of photoelectric cells and photoelectric cell performance parameters. United States: N. p., 1987.
Web.
Osterwald, Carl R, & Emery, Keith A. Method and apparatus for measuring areas of photoelectric cells and photoelectric cell performance parameters. United States.
Osterwald, Carl R, and Emery, Keith A. Thu .
"Method and apparatus for measuring areas of photoelectric cells and photoelectric cell performance parameters". United States. https://www.osti.gov/servlets/purl/866443.
@article{osti_866443,
title = {Method and apparatus for measuring areas of photoelectric cells and photoelectric cell performance parameters},
author = {Osterwald, Carl R and Emery, Keith A},
abstractNote = {A laser scanning system for scanning the surface of a photovoltaic cell in a precise, stepped raster pattern includes electric current detecting and measuring equipment for sensing the current response of the scanned cell to the laser beam at each stepped irradiated spot or pixel on the cell surface. A computer is used to control and monitor the raster position of the laser scan as well as monitoring the corresponding current responses, storing this data, operating on it, and for feeding the data to a graphic plotter for producing a visual, color-coded image of the current response of the cell to the laser scan. A translation platform driven by stepper motors in precise X and Y distances holds and rasters the cell being scanned under a stationary spot-focused laser beam.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1987},
month = {Thu Jan 01 00:00:00 EST 1987}
}
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