AIoTs-Based Measurement and Analysis of Temperature Dependence in NTC Thermistors Using Arduino D1 Mini
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I. Abstract
I. Abstract
This experiment explores the temperature dependence of a Negative Temperature Coefficient (NTC) thermistor using an Arduino D1 Mini-based IoT system for real-time data collection and analysis. The objective is to measure how the thermistor's resistance changes as the temperature decreases, utilizing a DS18B20 temperature sensor to track the temperature of hot water as it cools.
This experiment explores the temperature dependence of a Negative Temperature Coefficient (NTC) thermistor using an Arduino D1 Mini-based IoT system for real-time data collection and analysis. The objective is to measure how the thermistor's resistance changes as the temperature decreases, utilizing a DS18B20 temperature sensor to track the temperature of hot water as it cools.
A voltage divider circuit allows for calculating the thermistor’s resistance at various temperatures, with data transmitted via Wi-Fi to the ThingSpeak platform for remote monitoring and analysis. The experiment demonstrates the non-linear relationship between temperature and resistance in NTC thermistors and provides hands-on experience with IoT integration for real-time data logging. The B-value and temperature coefficient of resistance (α) are calculated from the experimental data, and compared with theoretical values from the thermistor’s datasheet to assess accuracy and understand the thermistor's thermal properties. This experiment highlights the practical applications of NTC thermistors in temperature sensing and the advantages of IoT technologies for experimental automation and analysis.
A voltage divider circuit allows for calculating the thermistor’s resistance at various temperatures, with data transmitted via Wi-Fi to the ThingSpeak platform for remote monitoring and analysis. The experiment demonstrates the non-linear relationship between temperature and resistance in NTC thermistors and provides hands-on experience with IoT integration for real-time data logging. The B-value and temperature coefficient of resistance (α) are calculated from the experimental data, and compared with theoretical values from the thermistor’s datasheet to assess accuracy and understand the thermistor's thermal properties. This experiment highlights the practical applications of NTC thermistors in temperature sensing and the advantages of IoT technologies for experimental automation and analysis.
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