Pengembangan Sensor Koil Datar 3-D untuk Deteksi Gempa Dini di Wilayah Lombok
Abstract: In this study, a
flat coil application as a three-dimensional (3-D) vibration sensor for early
detection of earthquake is designed to detect earthquakes in Lombok Island.
Flat coil is a very thin winding wire and is used as an inductor. When
inductance changes, frequency will change as well. The frequency can be
converted into voltage to represent the distance. This effect is applied to the
low frequency using three-dimensional pendulum (x,y,z) to detect the earthquake
in Lombok, West Nusa Tenggara. Lombok Island is a territory that lies between
the large plate of Asia and plate of Australia, thus, it belongs to earthquake
belt territory. The software of 3-D vibration sensor for early detection of
earthquakes uses Atmega 16 microcontroller vibration data acquisition program
as a voltage data recorder. Meanwhile, Arduino Nano is used to display the
waveform and to calculate the frequency of vibration. Based on the calibration,
the frequency of vibrations which can be measured are around 0.468 Hz on the
x-axis (source frequency is 0.46 Hz), around 0.55 Hz on the y-axis (source
frequency is 0.5 Hz), and around 0.48 Hz on the z-axis (source frequency is 0.5
Hz).
Kata Kunci: sensor, koil datar, 3-D, gempa dini, lombok
Penulis: Islahudin, Muhammad
Nizaar
Kode Jurnal: : jptlisetrodd170188
