Apriyanto, Donni Kis and Pauzi, Gurum Ahmad and ayu, Humairoh ratu (2021) Design software for adjusting the frequency of the laser modulation infrared diode portable photoacoustic spectroscopy. Journal of Physics: Conference Series, 1751. ISSN Print : 1742-6588 Online : 1742-6596

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Photoacoustic spectroscopy can apply in various fields, including in the fields of biology (measuring trachea volume and observing insect breathing patterns), medicine (a measurement of internal disease biomarkers through respiratory gases), environment (measuring NO2 gas in the environment near roads), and agriculture (measurement ethylene gas in postharvest fruit). The existing photoacoustic spectroscopy still has a large size and high operating costs, so it is necessary to design photoacoustic spectroscopy portable and low operating costs. Photoacoustic effects can occur when a modulated radiation source is present in this research, designing software to adjust the infrared diode laser's modulation frequency. There are two tests to see the characteristics of the software made in this study, test for Arduino and the software programs created. Arduino testing resulted in a calibration factor of f_o= 0.9068f_i + 109.33. Meanwhile, software testing resulted in a calibration factor of f_o= 0.7343f_i + 462.74. The two tests that have been carried out have different output results. The frequency of the software being made has a smaller calibration factor than the Arduino program's direct output.

Item Type: Article
Subjects: Q Science > QC Physics
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Fisika
Depositing User: donni kis apriyanto
Date Deposited: 04 Jun 2021 02:55
Last Modified: 04 Jun 2021 02:55
URI: http://repository.lppm.unila.ac.id/id/eprint/32001

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