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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) INTEK: Jurnal Penelitian
Muhammad Yunus
State University of Gorontalo
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Engineering Materials Science & Nanotechnology Physics

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Sensitivity Enhancing of Oil Viscosity Sensor Based on Optical Fiber by Using Bending Angle Method Muhammad Yunus; A Arifin; Nurul Fuadi; A. Muhammad Syafar
INTEK: Jurnal Penelitian Vol 8, No 1 (2021): April 2021
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v8i1.2794

Abstract

Testing of oil viscosity sensor based on plastic optical fiber by using bending angle variation method to enhance the sensor sensitivity. This sensor is made by forming an optical fiber bending angle, it is dipped into the oil viscosity liquid. The light transmitted through into the optical fiber will be received by the photodetector and the measurement results are displayed on the OPM in the form of output power. The best measurement obtained at the bending angle of 300 with value of sensor sensitivity is 1.013 nW/mPa.s. This method has the advantage of high sensitivity in a simple measurement process.
Kualitas Perangkat Pembelajaran Model Problem Based Learning dengan Pendekatan Contextual Teaching and Learning Trisnawaty Junus Buhungo; Supartin Supartin; Asri Arbie; Dewa Gede Eka Setiawan; Abdulrahman Djou; Muhammad Yunus
Jurnal Penelitian Pendidikan IPA Vol 9 No 3 (2023): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i3.3127

Abstract

The purpose of this study was to describe the quality of physics learning tools using the Problem-Based Learning model with the Contextual Teaching and Learning approach on the material of elasticity and Hooke's law. The research was conducted at Muhammadiyah Batudaa High School, and the research sample used was class XI IPA1 using simple random sampling technique. This development research uses Research and Development (R&D) research with the ADDIE development model developed by Reiser and Mollenda which consists of the Analysis, Design, Development, Implementation and Evaluation stages. The results of the study show that the validation of the entire learning device is stated to be very valid. The practicality of learning devices is determined by the average percentage of the implementation of learning carried out during two meetings reaching 97.61% with very good criteria, then for teacher and student responses through questionnaires give positive responses. The effectiveness of learning devices is seen through student activity data which obtains an average percentage of 90.30% obtained very good criteria and student learning outcomes data on elasticity and Hooke's law show an increase in the N-gain value of 0.74 included in the high N-gain criteria. This study concludes that physics learning tools that use the Problem-Based Learning model with a Contextual Teaching and Learning approach on elasticity and Hooke's law are included in the valid, practical and effective criteria to be applied in the learning process in class.
Co-Authors A Arifin A. Muhammad Syafar Abdulrahman Djou Asri Arbie Buhungo, Trisnawaty Junus Dewa Gede Eka Setiawan Nurul Fuadi Supartin Supartin