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Journal : IPTEK Journal of Proceedings Series

Development of the Portable Shake Table for Simulating Building Characteristic under Earthquake Condition Suluch, Munarus; Adhim, Fauzi Imaduddin; Priananda, Ciptian Weried; Rahayu, Lucky Putri; Kurnianto, Mahfud; Cantona, Singgih; Jauhari, Moh.
IPTEK Journal of Proceedings Series No 3 (2019): International Conference on Engineering Technology Advance Science and Industrial Appli
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2019i3.5834

Abstract

In the last few decades, massive earthquakes, which can damage many homes and buildings, have often occurred. To slow down or prevent damage from earthquakes, various technologies are needed. From this technology, simulators of ground motion from earthquakes can be used to remind people of the dangers of earthquakes. This paper introduces a portable earthquake simulator to simulate two-dimensional ground motion from an earthquake. Focusing on the design concept, structure, and features of this new simulator, the author discusses its implementation and verifies its feasibility with the results of the initial experiments.
Fabrication and Characterization of Directional Couplers as Power Dividers Andriawan, Alan; Rahayu, Lucky Putri; Pramono, Yono Hadi
IPTEK Journal of Proceedings Series No 3 (2019): International Conference on Engineering Technology Advance Science and Industrial Appli
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2019i3.5835

Abstract

This paper is about directional coupler fabrication results in a slab structure with a substrate in the form of acrylic glass, a film of nano SnO2, and cladding in the form of methyl methacrylate (MMA). The length of the interaction area (Lc) directional coupler of the fabrication result is 5 mm with a gap width (g) of 0.353 mm. SnO2 film is grown by deposition on an acrylic substrate. To facilitate the characterization process, the directional coupler is given an optical fiber as input. SnO2 film which has been deposited on an acrylic substrate is coated with methyl methacrylate (MMA). Coating of methyl methacrylate (MMA) in SnO2 film is done by the doctor blade method. Directional coupler fabrication results are used as optical power dividers. The fabricated directional coupler is narrated using a He-Ne laser with a wavelength of 632.8 nm. The characterization mechanism is carried out by taking a photo of the cross section of the directional coupler when given a laser beam input. The cross section photos are processed using ImageJ software to determine the directional coupler intensity distribution on each port. Based on the results of the characterization, the directional coupler with the 5 mm Lc output percentage is 26%, 24%, and 49%