Design and manufacture of characteristic test instrument for NTC thermistor sensor based microcontroller ATmega328 Robby Salam, Wiendartun, Ahmad Aminudin
Physics Program, Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia
Abstract
Testing of sensor characteristic is important in the design and manufacture of instrumentation system. NTC thermistor sensors are sensors that often used in the manufacture of measuring tools or control system of temperature. Nowadays, NTC have developed in various materials and forms. All of the NTC sensors that are made, require a characterization process to know the electrical characteristics, i.e. the relation between temperature and resistance of the NTC. Manual characterization process is complicated, takes a long time and the result are uncertain accuracy and precision. In this study, an NTC sensor characteristic test instrument was made. The test instrument can make the characterization process simpler and take a shorter time. The characterization test instrument was made with length, width and height of 200 mm, 100 mm and 100 mm respectively. The test instrument can be used to characterize any thermistor with shape of pellet with a maximum 5 mm of thickness and 12 mm of diameter. This instrument can use to characterize in temperature range 25 \(^{o}\)C to 300 \(^{o}\)C.
Keywords: Characterization; NTC Thermistor; Test Instrument
