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All Journal Journal of Electronics and Instrumentation DIGIMAS: Jurnal Transformasi Digital Masyarakat
Zainatul Khasanah
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Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Physics Other

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Analisis Pengukuran Jarak Objek Dengan Sensor Ultrasonik(HC-SR04) untuk Berbagai Bentuk Objek Safhira Aulia Nurazizah; Zainatul Khasanah; Risqillah Ayu Puspita S; Moh Avin Annabil
Journal of Electronics and Instrumentation Vol. 1 No. 2 (2024)
Publisher : Fakultas MIPA, Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jei.v1i2.687

Abstract

This experiment aims to determine the effect of the shape of the object on the distance and reading frequency of the HC-SR04 ultrasonic sensor and how far away the object is captured by the sensor. The method used is the experimental method and data analysis. This method is used to make it easier to obtain data. This experiment was carried out by varying the distance of 10 cm with obstacles (objects) of different sizes from the sensor until the object could not be detected by the sensor. The data obtained is in the form of calculated distances and frequency values. This data is then processed using MS Excel. The results obtained are in the form of analysis tables and graphs. The experimental results show that the distance of the object affects the frequency produced by the HC-SR04 ultrasonic sensor. The farther the object is, the lower the resulting frequency. Variations in object shape also affect the frequency produced by the HC-SR04 ultrasonic sensor. Objects that have a square shape will produce a higher frequency than objects that have a round shape. This research provides information about the influence of distance and variations in object shape on the frequencies produced by the HC-SR04 ultrasonic sensor. This information can be used to improve the accuracy of distance measurements using the HC-SR04 ultrasonic sensor. The largest average error value obtained was 0.13%, namely in experiments using a spherical object with a diameter of 2.5 cm. The smallest average error value obtained was 0.01%, namely in the experiment using a box object measuring 2x3 cm
Model Regresi untuk Estimasi Suhu Oral Berdasarkan Pengukuran Suhu Dahi Menggunakan Thermogun Fahreza, Rafi Achmad; Zainatul Khasanah; Atika Azizah; Risqillah Ayu Puspita; Ainayya Halifah
Journal of Electronics and Instrumentation Vol. 1 No. 3 (2024)
Publisher : Fakultas MIPA, Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jei.v1i3.689

Abstract

Semenjak pandemi Covid-19, terjadi revolusi di dalam dunia medis mengenai cara pengukuran suhu tubuh asli manusia. Suhu tubuh asli manusia sebelumnya banyak diukur menggunakan termometer digital yang diletakkan di ketiak. Namun, sejak terjadinya pandemi Covid-19 dokter dan tenaga medis dituntut untuk dapat melakukan pengukuran suhu tubuh secara lebih cepat dan dengan metode tanpa kontak dengan anggota tubuh. Hal tersebut membuat banyak dokter dan tenaga medis menggunakan thermogun yang dapat mengukur suhu tubuh manusia dengan cepat dan tanpa menyentuh anggota tubuh. Namun, permasalahan mengenai ketidakakuratan thermogun dan titik pengukuran di dahi membuat hasil pembacaan suhu tidak sesuai dengan suhu asli tubuh sebenarnya. Selain itu, pengukuran suhu tubuh menggunakan thermogun memiliki banyak faktor yang dapat mempengaruhi hasil yang didapatkan baik faktor internal maupun eksternal. Penelitian ini berfokus pada faktor internal yaitu titik pengukuran suhu. Tujuan dari penelitian ini yaitu untuk mengatasi ketidakakuratan pengukuran suhu tubuh dengan cara memberikan prediksi suhu oral (titik yang dapat merepresentasikan suhu tubuh sebenarnya) berdasarkan pengukuran suhu di dahi (titik paling efisien untuk pengukuran). Metode analisis data yang digunakan yaitu regresi linear sederhana di mana suhu dahi akan menjadi prediktor dan dapat memprediksi suhu oral yang menjadi respons. Analisis mengenai hubungan antara variabel dengan mencari nilai muliple R, koefisien determinasi, dan standart error of estimate (SEE). Setelah dilakukan analisis regresi, dilanjutkan dengan uji F menggunakan analisist of variable (Anova). Hasil persamaan garis regresi linear yang didapatkan yaitu , dengan . Hal tersebut membuat suhu dahi memiliki kesesuaian dengan suhu oral sebesar .
Optimalisasi Pemanfaatan Asam Jawa Lokal dalam Produksi Sirup di Desa Sopet sebagai Upaya Pemberdayaan Ekonomi Desa Karina Nine Amalia; Riki Irawan; Zainatul Khasanah; Nanda Alfarosus Salsabila; Wahyu Setiawan
Jurnal Transformasi Digital Masyarakat (DIGIMAS) Vol. 1 No. 1 (2025): DIGIMAS: Transformasi Digital Masyarakat
Publisher : Fakultas Ilmu Komputer, Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/digimas.v1i1.4497

Abstract

Indonesia possesses abundant biodiversity and significant potential to enhance community welfare through the utilization of local resources. Tamarind (Tamarindus indica L.), which is abundant in Desa Sopet, Kecamatan Jangkar, Kabupaten Situbondo, is often sold in its raw form with low economic value. This research aims to increase the added value of tamarind by processing it into syrup. Activities were conducted from July to August 2024, involving local housewives, Srikandi Pujasera Sopet, and village officials in a socialization and training program for tamarind syrup production in Desa Sopet. The stages of the activity include a potential survey, product selection, syrup making, extension services, and sales at UMKM events. The results show that the pasteurization process and water reduction effectively extend the shelf life of the syrup and maintain its quality. This program is expected to increase the income and skills of the people of Desa Sopet, as well as strengthen the village economy with superior products that can compete in the local and national markets.
Co-Authors Ainayya Halifah Amalia, Karina Nine Atika Azizah Fahreza, Rafi Achmad Moh Avin Annabil Nanda Alfarosus Salsabila Riki Irawan Risqillah Ayu Puspita Risqillah Ayu Puspita S Safhira Aulia Nurazizah Wahyu Setiawan