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Title: 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:
 [1];  [2]
  1. Lakewood, CO
  2. 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
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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 = {1987},
month = {1}
}

Patent:

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