超小型太陽電池を用いた小型簡易バンド分光光量子計の開発

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  • Development of Small-size Simple Band-spectral Quantum Meter with Ultra-small Photovoltaic Cells

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<p>In the growth study of agricultural crops, it is important to measure photon flux density (PFD) on each wavelength region such as ultraviolet, blue, green, red, and far-red. In our previous study, a simple band-spectra quantum meter was developed using photovoltaic (PV) cells, however the space resolution for measurement area was low owing to the large device size. Developed band-spectra quantum meter with the size of 70 mm length × 35 mm width × 10 mm height was configured using ultra-small PV cells and optical bandpass filters. A cover with the role to reduce the light reaching to the PV cells was equipped to maintain linear correlation between short-circuit current output of the ultra-small PV cells and outdoor solar radiation intensity. Band-spectral PFD according to the irradiated light wavelength was obtained from the developed quantum meter irradiated with green light.</p>

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