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Syahrir Syahrir
Program Studi Fisika Universitas Mulawarman
Astronomy Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Health Professions Materials Science & Nanotechnology Physics

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Analisis Koefisien Serapan (Absorbsi) kebisingan pada Bahan Kayu (Triplek, Papan Kayu dan Kalsiboard) siti istikhomah; Syahrir Syahrir; Adrianus Inu Natalisanto
Progressive Physics Journal Vol 2 No 1 (2021): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1481.755 KB) | DOI: 10.30872/ppj.v2i1.748

Abstract

Noise is a sound that humans do not want and it is an environmental factor that can negatively affect health. To overcome the noise issue, many efforts have been made to reduce noise levels. An example is the manufacture of the walls of a house using materials with sound and absorbent standards. The materials used can also be derived from types of wood such as plywood, wood panels and calciboards. Therefore, the value of its sound absorption coefficient is calculated to find out which active material is to be used in the manufacture of the building. Based on the research results, the value of the sound absorption coefficient of the three types of materials, it can be seen that the shape of the graph and its analysis states that the lowest sound absorption coefficient is most likely at the lower frequencies and the highest value of the sound absorption coefficient tends to be at the higher frequencies. In fact, when viewed as a whole, the magnitude and magnitude of the sound absorption coefficient on the graph is not in line with the increase in the frequency value.
Rancang Bangun Prototipe Monitoring Suhu dan Kelembaban Udara Berbasis Internet Of Things (IOT) Pada Laboratorium Kalibrasi Balai Pengujian dan Sertifikasi Mutu Barang Samarinda Muhammad Awaluddin; Syahrir Syahrir; Ahmad Zarkasi; Erlinda Ratnasari Putri
Progressive Physics Journal Vol 3 No 1 (2022): Progressive Physics Journal
Publisher : Program Studi Fisika, Jurusan Fisika, FMIPA, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (778.175 KB) | DOI: 10.30872/ppj.v3i1.910

Abstract

Telah dilakukan penelitian tentang rancang bangun prototipe monitoring suhu dan kelembaban udara berbasis internet of things (IoT) pada Labratorium Kalibrasi Balai Pengujian dan Sertifikasi Mutu Barang (BPSMB) Samarinda. Penelitian ini bertujuan merancang prototipe yang dapat mengukur suhu dan kelembaban udara menggunakan sensor BME280 berbasis mikrokontoler NodeMCU ESP8266. Tahapan penelitian dilakukan dengan merancang perangkat keras dan perangkat lunak prototipe menggunakan BME280 sebagai sensor yang dapat mengukur suhu dan kelembaban udara dan NodeMCU ESP8266 sebagai kontrol utama yang dilakukan di Laboratorium Elektronika dan Instrumentasi Universitas Mulawarman. Tahap selanjutnya, dilakukan pemantauan suhu dan kelembaban udara di Laboratorium Kaibrasi Balai Pengujian dan Sertifikasi Mutu Barang Samarinda. Hasil perancangan prototipe dapat mengukur suhu dan kelembaban udara seacara realtime serta dapat dimonitoring menggunakan smartphone melalui aplikasi blynk dan hasil monitoring di Laboratorium Kalibrasi BPSMB Samarinda menunjukkan bahwa laboratorium tersebut berada pada suhu ideal yaitu 18 - 22 sesuai standar acuan JIS Z 8710 (Japanese Industrial Standard).
Co-Authors Adrianus Inu Natalisanto Ahmad Zarkasi Muhammad Awaluddin siti istikhomah