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Leveraging the self-heating effect of ntc thermistor to detect its minimum coverage by a dispensed paste in the mass production process of temperature sensors
Saúl Alejandro Rodríguez Jiménez
LEONOR ADRIANA CARDENAS ROBLEDO
Acceso Abierto
Atribución-NoComercial-CompartirIgual
2348-7968
Self-heating effect
Thermistor
Paste
Temperature sensor
Heat dissipation
This paper develops a device capable of confirming the minimum coverage area on a thermistor by a thermal paste dispensed and cured in the manufacturing process of Exhaust Gas Recirculation (EGR) temperature sensors to provide the required fixation in the presence of mechanical shock conditions. Such a device leverages the thermistor’s self-heating effect and the thermal conductivity of the paste to read the voltage drop from the sensor, which translates into paste coverage area. The methodology follows a synthesized procedure to develop equipment and processes, considering an early phase for concept confirmation to demonstrate the feasibility of the device development. In a later phase, the optimal parameters are calculated and set to the device for delivering the corresponding classification of the sensors during the test. Once launched in production, the device demonstrates high effectiveness in screening out the sensors with rejectable paste coverage area on the thermistor.
IJISET
2023
Artículo
International Journal of Innovative Science, Engineering & Technology (IJISET), vol. 10, no. 4 (april), p. 108-120
Inglés
Público en general
OTRAS
Versión publicada
publishedVersion - Versión publicada
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