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- W1997788093 abstract "We introduce the photoacoustic educational system (PAES), by which we can identify which gas causes the greenhouse effect in a classroom (Kaneko et al 2010 J. Chem. Educ. 87 202–4). PAES is an experimental system in which a pulse of infrared (IR) is absorbed into gas as internal energy, an oscillation of pressure (sound) appears, and then we can measure the absorptance of IR by the strength of sound. In this paper, we construct a simple mathematical model for PAES which is equivalent to the CR circuit. The energy absorption of an IR pulse into gas corresponds to the charge of a condenser and the heat diffusion to the outside corresponds to the energy dissipation by electric resistance. We analyse the experimental results by using this simple model, and check its validity. Although the model is simple, it explains phenomena occurring in PAES and can be a good educational resource." @default.
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- W1997788093 date "2012-03-29" @default.
- W1997788093 modified "2023-09-23" @default.
- W1997788093 title "Simple model of a photoacoustic system as a CR circuit" @default.
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- W1997788093 doi "https://doi.org/10.1088/0143-0807/33/3/623" @default.
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