Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal International Journal of Science and Environment Jurnal Tera
Febriyani Pratiwi, Ganjar
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Mathematics Mechanical Engineering Physics

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
ALAT PENDETEKSI KEBOCORAN GAS ELPIJI Nur Arifin, Tri; Febriyani Pratiwi, Ganjar; Janrafsasih, Arra
Jurnal Tera Vol 2 No 1 (2022): Jurnal Tera (Maret 2022)
Publisher : Fakultas Teknik dan Informatika, Universitas Dian Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (787.796 KB)

Abstract

Gas Elpiji merupakan suatu gas yang mudah terbakar jika terdapat titik atau percikan api di sekitarnya. Tidak sedikit kasus ledakan dan kebakaran rumah diakibatkan dari kebocoran gas Elpiji baik dari tabungnya, regulatornya maupun selangnya yang sudah tidak baik kondisinya atau rusak. Untuk mencegah terjadinya keracunan maupun kebakaran akibat kebocoran gas Elpiji, maka diperlukan suatu alat yang dapat mendeteksi serta menanggulangi kebocaran gas Elpiji di dapur. Yaitu alat pendeteksi kebocoran gas Elpiji yang terhubung dengan buzzer untuk peringatan dan kipas penyerap udara (Exhaust Fun) untuk menyerap gas Elpiji agar dapat dibuang langsung ke udara bebas. Alat ini untuk mendeteksi gas butana atau propane yang terdapat pada gas Elpiji. Penelitian ini dengan metode perancangan alat dan pengujian alat agar dapat hasil yang maksimal sesuai yang diinginkan. Hasil dari penelitian ini yaitu ketika kebocoran gas lebih besar sama dengan 500ppm maka alat akan mebunyikan buzzer, namun jika kebocoran gas lebih besar sama dengan 1000ppm maka sensor akan mengaktifkan buzzer dan exhaust fun.
Designing a Frequency Measurement Instrument Kit Based on the PIC16F628A Microcontroller Febriyani Pratiwi, Ganjar; Fenki Mahardika Prawiro, Roby; Wahyuningsih, Erfiana; Arifin, Tri Nur
International Journal of Science and Environment (IJSE) Vol. 6 No. 1 (2026): February 2026
Publisher : CV. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51601/ijse.v6i1.380

Abstract

The rapid development of electronic systems has increased the need for accurate frequency measurement because many electrical and digital devices depend on stable operating frequencies for proper performance. In routine laboratory and field work, digital multimeters are frequently used for frequency checks due to their practicality and availability, yet their readings may be affected by signal conditions and instrument processing limits. This study aims to assemble and evaluate a low-cost digital frequency counter based on the PIC16F628A microcontroller for measuring crystal oscillators and external frequency signals, while benchmarking its readings against a digital multimeter. An experimental quantitative approach was applied that included hardware assembly, schematic reconstruction through PCB trace inspection, block-level functional analysis, and measurement testing using five crystal oscillators and externally generated reference signals derived from a 32.768 kHz source with frequency division. Data were recorded across test points from 1 Hz to 32.768 kHz and summarized through direct comparison between nominal frequencies and instrument readings. The frequency counter produced readings that matched the nominal test frequencies across all external test points within the display resolution limits. Crystal testing also yielded values close to nominal specifications (e.g., 8.0002 MHz for 8 MHz and 11.998 MHz for 12 MHz). The digital multimeter showed small frequency-dependent offsets at higher test points (e.g., 32.770 kHz at 32.768 kHz). These results indicate that the dedicated counter delivers stable measurements across the evaluated range. This work offers a practical reference for electronics education and routine verification by combining schematic reconstruction, reproducible block-level documentation, and empirical validation of a kit-based instrument, providing added value beyond prior studies that emphasize either theory or new system design.
Co-Authors Arifin, Tri Nur Fenki Mahardika Prawiro, Roby Janrafsasih, Arra Tri Nur Arifin Wahyuningsih, Erfiana