| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a solar radiation intensity measuring method and a pyrheliometer that are suitable for a change in the solar radiation intensity of a solar cell (without any time delay) and output an accurate output signal to accurately evaluate the output (power generation) of the solar cell. <P>SOLUTION: According to the quickness of the response of the output signal to a change in the solar radiation intensity, the solar cell (cell) is utilized, the solar radiation intensity and satisfactory response characteristics of a photovoltaic current of the solar cell are used, and the solar radiation intensity is calculated. More specifically, the photovoltaic current is determined by solving a solar cell basic expression from a short-circuiting current S22, a measurement value S20 of a solar cell temperature, and the characteristic value of the solar cell. According to the determined value, the solar radiation intensity is determined. Especially, various plans are made in the calculation of the solar cell basic characteristic value. <P>COPYRIGHT: (C)2004,JPO</p> |
