Date of Award
2025
Document Type
Thesis
Degree Name
Bachelors
Department
Natural Sciences
First Advisor
Sendova, Mariana
Area of Concentration
Physics with Computer Science
Abstract
This study investigates the thermal hysteresis behavior of negative temperature coefficient (NTC) thermistors under sinusoidal voltage excitation at varying input frequencies and voltage amplitudes (). Three thermistors with nominal resistances of ��0250 Ω, 500 Ω, and 1 kΩ were subjected to sinusoidal voltage signals at frequencies () of ��0.5 Hz and 1.5 Hz, with ranging from 2 V to 7 V. The hysteresis loop areas were ��0quantified through numerical integration, and the effects of input frequency, , and ��0thermistor resistance were analyzed. Results demonstrated that higher input frequencies reduced the hysteresis loop area, indicating reduced thermal lag. In contrast, larger ��0and lower frequencies led to more pronounced hysteresis, with the largest loop areas observed at lower frequencies and higher . This study highlights the complex ��0electrothermal feedback mechanisms influencing thermistor behavior and offers insight into optimizing thermistor selection for applications requiring precise thermal management.
Recommended Citation
Martin, Corbin, "AN EXPLORATORY ANALYSIS OF ELECTRICAL HYSTERESIS IN THERMISTORS" (2025). Theses & ETDs. 6692.
https://digitalcommons.ncf.edu/theses_etds/6692