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Measurement method of the current-voltage characteristics of photovoltaic devices, a solar simulator for the measurement, and a module for setting irradiance and a part for adjusting irradiance used for the solar simulator
Measurement method of the current-voltage characteristics of photovoltaic devices, a solar simulator for the measurement, and a module for setting irradiance and a part for adjusting irradiance used for the solar simulator
In a solar simulator for measuring the current-voltage characteristics of photovoltaic devices, it is to provide a measurement method using a solar simulator in which locative unevenness of irradiance on the test plane of the test plane side is drastically improved, not in a light source side, and a means for adjusting irradiance and the like.;when an object is the photovoltaic devices Ms, and the current-voltage characteristics are measured by a solar simulator Ss equipped with a light source composed of a lamp and a reflector, and a part for setting the object to be measured, in which it is possible to dispose an irradiated test plane of the object to be measured opposite an illuminating surface of said light source, the whole test plane of said photovoltaic devices is divided imaginarily into a plurality of sections and a selected member for adjusting irradiance is disposed opposite the test plane of each imaginary sections so as to equalize or substantially to equalize the irradiance by the light source at every irradiated test plane of the sections, after which light from said light source is directed onto the test plane of the object to be measured.
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