Alam, Kharis Aulia (2019) Rancang Bangun Prototype Instrumen Pendeteksi Dini Tsunami Dengan Memanfaatkan Prinsip Refleksi Gelombang. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Kondisi tektonik Indonesia terkait lempeng benua dan samudera menyebabkan Indonesia menjadi negara dengan tingkat rawan bencana gempabumi yang tinggi. Gempabumi dengan parameter tertentu mampu memicu terjadinya bencana tsunami. Hingga tahun 2019, lebih dari 150.000 korban jiwa telah jatuh yang tentunya tidak lepas dari absennya teknologi pendeteksi dini tsunami dari perairan Indonesia dan ditambah dengan kurangnya pengetahuan masyarakat terkait tanda-tanda akan terjadinya tsunami, seperti surutnya air laut. Sehingga, dilakukan perancangan prototype instrumen pendeteksi dini tsunami dengan memanfaatkan prinsip refleksi gelombang. Sensor ultrasonik dan sensor efek doppler dikombinasikan dengan mengaplikasikan konsep penembakan dan penerimaan kembali gelombang. Pengujian dilakukan terhadap model uji rekayasa kondisi tsunami untuk melihat kemampuan instrumen dalam mendapatkan data ketinggian dan kecepatan perubahan ketinggian air. Kedua sensor mampu mendapatkan nilai ketinggian air dan kecepatan perubahan ketinggian air dengan tingkat error ±10-2. Kecepatan surut air yang dikategorikan sebagai tanda-tanda tsunami pada model uji rekayasa adalah di atas 2 cm/s. Instrumen pendeteksi dini tsunami yang dibangun pada penelitian ini merupakan instrumen yang bisa digunakan untuk memberikan peringatan terhadap tsunami akibat aktivitas tektonik
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Indonesia's tectonic conditions related to continental and oceanic plates have made Indonesia a country with a high level of earthquake hazard. Earthquakes with certain parameters can trigger a tsunami disaster. Until 2019, more than 150.000 fatalities have fallen which sertainly cannot be separated from the absence of early warning system technology from Indonesian sea and coupled with a lack of public knowledge regarding signs of tsunami, such as the recede of sea water level. So, the prototype of tsunami early detection instrument designed by utilizing the principle of wave reflection. Ultrasonic and doppler sensors are combined by applying the concept of transmitting and receiving the electromagnetic wave. Tests carried out on the tsunami condition engineering test model to see the ability of the instrument to obtain altitude data and speed of change in water level. Both sensors are able to get the value of water level and speed of change in water level with an error rate of ±10-2. The rate of water receding which is categorized as tsunami signs in the engineering test model is above 2 cm / s. The tsunami early detection instrument built in this research is an instrument that can be used to provide a warning against tsunamis due to tectonic activity.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSGf 551.470 24 Ala r-1 2019 |
| Uncontrolled Keywords: | Doppler effect, Tectonic activity, Tsunami, Ultrasonic, Wave Reflection |
| Subjects: | T Technology > T Technology (General) > T174.5 Technology--Risk assessment. T Technology > TA Engineering (General). Civil engineering (General) > TA1573 Detectors. Sensors |
| Divisions: | Faculty of Civil Engineering and Planning > Geophysics Engineering > 33201-(S1) Undergraduate Thesis |
| Depositing User: | Kharis Aulia Alam |
| Date Deposited: | 20 Dec 2023 07:57 |
| Last Modified: | 20 Dec 2023 07:57 |
| URI: | http://repository.its.ac.id/id/eprint/64309 |
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