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All Journal Elektrika Mars: Jurnal Teknik Mesin, Industri, Elektro dan Ilmu Komputer
Diah Rahayu Ningtias
Sekolah Tinggi Ilmu Kesehatan Semarang
Computer Science & IT Electrical & Electronics Engineering

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Pengaruh Faktor Eksposi Terhadap Respon Detektor Isian Gas Pada Surveymeter Berbasis IoT Chandra Kusuma; Diah Rahayu Ningtias
Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer Vol. 2 No. 1 (2024): Februari: Mars: Jurnal Teknik Mesin, Industri, Elektro Dan Ilmu Komputer
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/mars.v2i1.58

Abstract

A surveymeter is a measuring instrument that functions to detect radiation exposure doses, which uses a Geiger Muller gas filled detector with the initial unit of sievert converted to microsievert (μSv/hour). In this research, we fabricated an IoT-based surveymeter and tested the response of the gas fill detector used to changes in exposure factors. Before collecting data, it is mandatory to set parameters on the control panel to determine the radiation exposure dose to be measured. Measurements are carried out on a mobile X-Ray with parameter settings including tube voltage (kV), tube current (mA), and exposure time (s). From the results of research that the Geiger Muller gas filled detector responds to the radiation exposure dose that has been determined on the control panel and fired by mobile X-Ray, the results detected by the detector will be displayed in the application in the form of Counts Per Minute (CPM), µSv/h, + /- and data can be stored in the database. The higher the tube current value given, the smaller the radiation dose value obtained. In other words, the gas fill detector responds with a dose value that is directly proportional to the X-ray tube voltage value and inversely proportional to the X-ray tube current value.
Kalibrator Infant Warmer Berbasis Arduino Uno Dilengkapi dengan Penyimpanan Data Bayu Wahyudi; Diah Rahayu Ningtias; Ardian Widyastuti
Elektrika Vol. 15 No. 1 (2023): April 2023
Publisher : Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/elektrika.v15i1.5780

Abstract

Calibration is an activity to determine the conventional correctness of the designation value of measuring instruments and measuring materials by comparing them with traceable measuring standards to national standards for units of measure and/or international ones. One example of a tool used for calibration is the Infant Warmer Calibrator. The purpose of this research is to produce a tool that can be used to calibrate and analyze temperature and humidity data on infrant warmers. This tool uses five LM35 type temperature sensors with Arduino as the main controller for this tool, and is also equipped with a DHT11 type humidity sensor, and is also equipped with an SD Card as storage. From the results of the study, different results were obtained with the largest error difference of 1.85% at a test point of 35°C and the smallest error presentation was 1.3% at a test point of 34°C and the tool was functioning properly. Keywords: Kalibrator Infant Warmer, Temperature sensor, Humidity Sensor, SD Card. ABSTRAKKalibrasi adalah kegiatan untuk menentukan kebenaran konvensional nilai penunjukkan alat ukur dan bahan ukur dengan cara membandingkan terhadap standar ukur yang mampu telusur (traceable) ke standar nasional untuk satuan ukuran dan/atau internasional. Salah satu contoh alat yang digunakan untuk kalibrasi adalah Kalibrator Infant Warmer. Tujuan penelitian ini adalah untuk menghasilkan alat yang dapat digunakan untuk melakukan kalibrasi serta melakukan analisis data suhu dan kelembapan pada infrant warmer. Alat ini menggunakan lima sensor suhu type LM35 dengan arduino sebagai pengotrol utama pada alat ini, dan juga dilengkapi dengan sensor kelembapan type DHT11, dan juga dilengkapi dengan SD Card sebagai penyimpanan. Dari hasil penelitian didapatkan hasil yang berbeda-beda dengan selisih kesalahan terbesar 1,85 % pada test point 35°C dan presentasi kesalahan terkecil yaitu 1,3% pada test point 34°C dan alat sudah berfungsi dengan baik.
Co-Authors Ardian Widyastuti Bayu Wahyudi Bayu Wahyudi Chandra Kusuma Josepa ND Simanjuntak Muhammad Rofi’i Rodhotul Muttaqin