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VISION SYSTEM DEVELOPMENT IN ECCENTRICITY TESTING FOR KWH METER UPPER BEARING Emilham Mirshad
Widyariset Vol 4, No 1 (2018): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (682.909 KB) | DOI: 10.14203/widyariset.4.1.2018.49-60

Abstract

Eccentricity measurement techniques are developed to ensure optimization of operational works, either for large or small objects such as upper bearing kWH meter. Small object eccentricity testing has been done by using precise and sensitive touch trigger probing and a special sofware that makes it expensive. This study developed a more economical vision systemin eccentricity testing. It consists of bearing holder and CCD microscope as an image recorder and computerized image processing. It uses three tested bearing during image recording process, which obtained 12 images from each tested bearing taken from every 30o angle, and one image as registration reference. Image registration process is conducted to correct imperfections bearing mounting into its holder and use centroid method to test the eccentricity of upper bearing kWH meter. This study is succeed in making an eccentricity testing prototype of upper bearing kWH meter which obtained result of 2nd bearing has its largest standard deviation. From all standard deviation value obtained that x -axis (horizontal) standard deviation is larger than y-axis (vertical) which means that detection of x direction is more accurate than y direction. To enhance precision image acquisition in the next study, it is expected the use of a computer system with homogeneous illumination is enabled.
Media in Improving Teachers Professional Competence at SMAN 5 Batam Ermawalis; Fetri Yeni J; Darmansyah; Rayendra; Emilham Mirshad; Abdul Habib Arrasyidi Desky
Jurnal Penelitian Pendidikan IPA Vol 11 No 9 (2025): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i9.12180

Abstract

This study aims to analyze the use of digital-based media in enhancing the professional competence of teachers at SMAN 5 Batam. Teacher competence is crucial for improving the quality of learning, and digital technology offers potential strategies for professional development. The research employed a quantitative approach, using descriptive and inferential analyses, with simple linear regression to examine the relationship between digital media use and teacher competence. The results show that integrating digital media positively impacts teachers’ knowledge, pedagogical skills, and learning innovation. The study found a strong correlation between digital media use and professional competence (r = 0.770) and a coefficient of determination of 58.83%, indicating that digital media contributes significantly to competence improvement. Despite these positive outcomes, several challenges were identified, including limited infrastructure, insufficient ongoing training, and resistance to adopting new technologies. The findings suggest that the effective use of digital media can enhance teacher competence when supported by proper policies, continuous training, and capacity-building programs. This research highlights the strategic role of digital technology in teacher development and provides empirical evidence that supports the integration of digital media as a tool to foster professional growth and innovation in education.