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Laili Mardiana
Progam Studi Fisika, Fakultas MIPA, Universitas Mataram, Mataram, Indonesia
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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A Development of a Coarse Particle Concentration Measurement System Using a Crystal-Based Sensor and a Dust Sensor for Air Quality Measurement Arif Budianto; Susi Rahayu; Laili Mardiana; Ramadian Ridho Illahi; Rosita Juniarti
Jurnal Pendidikan Fisika dan Teknologi (JPFT) Vol 10 No 1 (2024): January-June
Publisher : Department of Physics Education, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpft.v10i1.6692

Abstract

QCM or quartz crystal microbalance is a non static crystal that can be used as a mass sensor. As a piezoelectric crystal, a QCM generates an electrical signal with a specific frequency. The frequency change can be utilized as a frequency counter in a mass measurement system. This study aims to develop a coarse particle sensor system using a QCM and an oscillator circuit. In line with this, this study uses an oscillator circuit and a QCM for a sensor development. Thus, the frequency measurement of the QCM contains an oscillator and a signal conditioner connected to a microcontroller. For this purpose, an Arduino Nano was used as the signal processing, while a QCM was used as a coarse particle sensor and compared to a digital dust sensor (Winsen ZH03). The sensor system was evaluated using a fixed-type crystal connected to an oscillator: 2.5 MHz - 7.2 MHz. Arduino Nano processed the frequency signal generated by the developed oscillator. The results show that the sensor system has a stable output signal compared to the comparator. There is a linear correlation between the frequency measured by the system and the oscilloscope (99.73%). It can be concluded that the sensor system can measure coarse particle concentrations from 32-620 ug/cm3 (frequencies from 2 MHz to 7.2 MHz) with a response time of 1 second. The system has an accuracy of 99% and a resolution of 1 Hz.
Co-Authors Alfina Alaydrus Alfina Taurida Alaidrus Alfina Taurida Alaydrus Arif Budianto Arif Budianto Dhony Hermanto Dian Wijaya Kurniawidi Dodi Mariadi Fahrurazi Fahrurazi Halil Akhyar Intan Utami Kasnasi Al Hadi Kasnawi Al Hadi Lalu Sahrul Hudha Muhamad Ali Ni Kadek Nova Anggarani Nurul Ismillayli Nurul Qomariyah Putri Arifatul Fajriyah Ramadian Ridho Illahi Rina Kurnianingsih Rosita Juniarti Siti Alaa’ Suhayat Minardi Suhayat Minardi Susi Rahayu Teguh Ardianto, Teguh Teguh Rifandi Wirawan, Rahadi