Active Vibration Isolation System (AVIS) using a voice coil actuator to improve free space optics communication

A. Rahim, Syazwani and Muthalif, Asan G. A. and Turahim, Khairiah Kamilah and Nordin, Nor Hidayati Diyana (2019) Active Vibration Isolation System (AVIS) using a voice coil actuator to improve free space optics communication. In: "10th IEEE Control and System Graduate Research Colloquium, ICSGRC 2019", 2- 3 August 2019, Shah Alam.

	PDF - Published Version Restricted to Repository staff only Download (8MB) | Request a copy
Preview	PDF (Scopus) - Supplemental Material Download (116kB) | Preview

Abstract

n Free Space Optic communication (FSOC), transmitter and receiver's alignment is vital to maintain the line of sight during the whole communication period. This is critical in data transmission over a long-distance. Vibration at either receiver or transmitter, causes misalignment and this affects FSOC. In this paper, AVIS, which can actively isolate FSO devices from low-frequency vibration from the ground, is designed and developed. The main goal is to reduce vibration from the top plate of the system where the telescope of the FSOC system is placed. An analytical model of the active vibration isolation is derived, and then the real prototype is fabricated. An imbalance mass system is used as an exciter for the system. Furthermore, for the cost-saving factor, a voice coil actuator which is modified from a conventional loudspeaker is used as an actuator for the system. LQR controller is implemented by using LabVIEW. The results show that the displacement level of the system with excitation frequencies 6 Hz, 12 Hz and 18 Hz are reduced more than 85 %. Moreover, it is proven that the loudspeaker not only costs lower but also gives a good performance for an AVIS.

Item Type:	Conference or Workshop Item (Invited Papers)
Additional Information:	8572/79688
Uncontrolled Keywords:	Active vibration isolation; Voice coil actuator; LQR, FSO, LabVIEW
Subjects:	T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Engku Norulizati Engku Aziz
Date Deposited:	16 Jun 2020 11:16
Last Modified:	16 Jun 2020 11:16
URI:	http://irep.iium.edu.my/id/eprint/79688

Actions (login required)

View Item