RANCANG BANGUN SISTEM PENGONTROL FREKUENSI GETARAN MENGGUNAKAN SERAT OPTIK
DOI:
https://doi.org/10.25077/jfu.4.2.%25p.2015Abstract
ABSTRAK
Telah dirancang sistem pengontrolan frekuensi getaran menggunakan serat optik dengan metode ekstrinsik. Sensor serat optik digunakan untuk mengukur frekuensi getaran dengan memanfaatkan perubahan tegangan keluaran yang dihasilkan oleh fotodetektor.Tegangan keluaran terjadi akibat perubahan jarak serat optik dengan membran speaker magnet sebagai sumber getarnya. Rancangan sistem kontrol terdiri dari sumber cahaya dari laser dioda, serat optik FD 620-10, fotodetektor OPT 101, mikrokontroler Arduino UNO untuk memproses sinyal, relay dan menggunakan program Delphi sebagai penampil di PC (personal computer). Hasil pengujian sistem kontrol dapat mengontrol getaran pada frekuensi 10 Hz dari rentang pengukuran 1 sampai 30 Hz.
Kata kunci: Sistem kontrol, Frekuensi getaran, Serat optik.
Abstract
A vibration frequency control system using optical fiber has been designed. Optical fiber sensor system is used to measure vibration frequency by utilizing the output voltage change in the resulting by photodetector. The output voltage occurs due to change distance of optical fiber with membrane magnet speaker as a source of vibration. The design of the control system consists of a source of light from the laser, optical fiber FD 620-10, photodetector OPT 101, UNO Arduino microcontroller to process the signal, relay and use Delphi as a viewer program on a PC (personal computer). Results of testing the control system can control the vibration at a frequency of 10 Hz of the measuring range 1 to 30 Hz.
Keywords: System control, vibration frequency, fiber optics.
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