Defi Setiawati, 1017041025 (2015) Sistem Telemetri Data Pergeseran Tanah dari Sensor Potensiometer Menggunakan Radio Frekuensi APC220. Fakultas Matematika dan Imu Pengetahuan Alam, Universitas Lampung.
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Abstract
Sistem Telemetri Data Pergeseran Tanah dari Sensor Potensiometer Menggunakan Radio Frekuensi APC220 Penelitian ini menghasilkan sebuah instrument komunikasi jarak jauh menggunakan radio frekuensi APC220 sebagai pengirim dan penerima data pergeseran tanah yang dikendalikan oleh mikrokontroller Atmega32. Sensor pergeseran tanah memanfaatkan dua potensiometer yang mengubah jarak pergeseran menjadi tegangan. Sistem ini memanfaatkan sel surya 10 WP dan aki 12 V 12Ah sebagai sumber tegangan sehingga dapat dioperasikan di daerah pedalaman selama 15 jam secara praktik, sedangkan secara teori dapat dimanfaatkan selama 24 jam. Komputer menerima data tegangan dan jarak pergeseran dari sistem dengan interval 10 detik. Dalam penelitian ini, sensor mampu mendeteksi jarak pergeseran 0 sampai dengan 15 cm. Sensor pertama memiliki persamaan y = 0,275x + 0,138 dengan korelasi linier 0,999 dan sensitivitas 0,235 V/cm sedangkan untuk sensor kedua memiliki persamaan y = 0,317 x – 0,677 dengan korelasi linier 0,968 dan sensitivitas 0,270 V/cm. Kata kunci. Potensiometer, radio frekuensi APC220, pergeseran tanah Telemtry System of Landslide Data from Potentiometer Sensor Using APC220 Radio Frequency This research has been realized a remote communication instrument using APC220 radio frequency as transmitter and receiver of landslide data that has controlled by Atmega32 microcontroller. Landslide sensor utilized by two potentiometers that converting the shift distance into a voltage. The system used 10 WP solar cell and 12V 12Ah battery as a voltage source that can be operated in the isolated area for 15 hours in practice, while in theory can be used for 24 hours.. Computer received voltage and shift distance data from system with interval 10 seconds. In this research, the sensor was able to detect 0 to 15 cm shift distance. First sensor has equation y = 0.275x + 0.138 with linear correlation 0.999 and sensitivity 0.235 V/cm while second sensor has equation y = 0.317 x - 0.677 with linear correlation 0.968 and sensitivity 0.270 V/cm. Keywords. Potentiometer, APC220 radio frequency, landslide.
| Item Type: | Other |
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| Subjects: | ?? General ?? |
| Divisions: | ?? Fisiska ?? |
| Depositing User: | 4787504 . Digilib |
| Date Deposited: | 02 Mar 2015 07:21 |
| Last Modified: | 02 Mar 2015 07:21 |
| URI: | http://digilib.unila.ac.id/id/eprint/7531 |
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