Setiyawan, Badri Gigih (2018) Rancang Bangun Sistem Akuisisi Data Gelombang Mikroseismik dengan Akselerometer MEMS. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Tugas Akhir ini bertujuan untuk merancang sistem akuisisi data gelombang mikroseismik dengan menggunakan akselerometer MEMS dimana yang digunakan yaitu MMA7361L. MMA7361L dipilih sebagai alternatif sensor getaran karena memiliki sensitivitas yang cukup tinggi jika dibandingkan akselerometer MEMS yang lainnya yakni mencapai 800 mV/g. Pengujian yang dilakukan terbagi menjadi dua yaitu pengujian laboratorium dan pengujian lapangan. Pengujian laboratorium meliputi karakterisasi sensor MMA7361L untuk mengetahui respon sensor terhadap frekuensi rendah dan pengujian rangkaian low-pass filter, sedangkan pengujian lapangan yakni membandingkan alat yang telah dirancang dengan alat komersil (Sara SL06 Seismograph & Sara SS45 Electrodynamic Sensor) dengan cara diletakkan pada titik dan waktu yang bersamaan guna merekam gelombang mikroseismik. Hasilnya ialah MMA7361L memiliki respon frekuensi pada frekuensi rendah dari rentang frekuensi uji 2-20 Hz. Selain itu, jika dibandingkan dengan alat pembanding kurang menunjukkan puncak spektrum pada frekuensi yang sama karena sensitivitas berbeda.
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This Final Project to design a system of microseismic wave data acquisition using MEMS accelerometer where it uses MMA7361L. MMA7361L is chosen as an alternative vibration sensor because it has a high sensitivity when compared to other MEMS accelerometers that reach 800 mV/g. Test of the result contain two types of test, laboratory testing and field testing. Laboratory tests include the characterization of the MMA7361L sensor to determine the sensor response to low frequency and low-pass filter circuit testing, whereas field testing comparing tools that have been designed with commercial tools (Sara SL06 Seismograph & Sara SS45 Electrodynamic Sensor) commonly used microseismic recording to record the microseismic wave at the same point and time. The results is MMA7361L has frequency response at low frequency with range of test around 2-20 Hz, but when compared with comparing tools not enough to show peak spectrum at the same frequency because sensitivity different of them.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSFi 551.22 Set r-1 3100018075081 |
| Uncontrolled Keywords: | Frekuensi, Mikroseismik, MMA7361L |
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Mathematics and Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Badri Gigih Setiyawan |
| Date Deposited: | 09 Apr 2018 02:56 |
| Last Modified: | 16 Sep 2020 07:08 |
| URI: | http://repository.its.ac.id/id/eprint/50536 |
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