Other

Atonometrics, Inc.

Jason Schneider

Michael Gostein

Stan Faullin

Russell J Apfel

William Stueve

Lawrence R Dunn

Naoum Gitnik

A device comprising a transparent window, an imaging unit, and a computing element coupled to said imaging unit, wherein said device is configured to allow soiling particles to accumulate on a surface of said transparent window, said imaging unit is configured to capture an image of said surface, and said computing element is configured to perform analysis of said image to determine a soiling level of said transparent window, wherein a surface of said transparent window may include reference marks enabling calibration of said image during said analysis. Additionally, a method of performing said analysis.

Imaging-based optical soiling measurement device with self calibration features

An apparatus for measuring electrical characteristics of solar panels (photovoltaic modules) wherein the apparatus measures current versus voltage ('I-V') relationships for both illuminated ('light I-V') and/or non-illuminated (&#x201c;dark I-V&#x201d;) conditions; optionally provides single, dual, or four-quadrant source/sink capability; and measures one or more devices under test (DUTs). The apparatus comprises one or more source measurement units (SMUs), wherein each SMU is connected to one DUT, and optionally includes a positive high-voltage programmable power supply and/or a negative high-voltage programmable power supply. Additionally, the apparatus includes a controller which controls the functions of the SMUs, the high-voltage supplies, and other components of the apparatus, wherein the controller communicates with the SMUs over a signal bus. Finally, the apparatus may include a computer to provide a user interface, communicate with the controller to initiate measurements and record results, analyze resulting data to determine measured parameters, and/or store the measured data.

I-V measurement system for photovoltaic modules

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Austin, TX, United States of America

Jason Schneider