Titre :
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Build a Motor Dynamometer : using a PIC32 MCU (2021)
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Auteurs :
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Erika Yu, Auteur ;
Aasta Gandhi, Auteur ;
Kowin Shi, Auteur
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Type de document :
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Article : texte imprimé
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Dans :
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Circuit cellar (373, August 2021)
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Article en page(s) :
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p. 16-23
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Langues:
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Américain
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Sujets :
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IESN
Amplificateur
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Dynamomètre
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Electronique
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Instrumentation
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MATLAB (électronique)
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Microcontrôleur
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Moteur électrique
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Résumé :
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"Using a PIC32 MCU Dynamometers are a key tool for assessing electric motor characteristics. Learn how these three Cornell students designed an electric motor dynamometer to characterize the torque, efficiency and power of a small electric motor. Data is processed using a PIC32 MCU and visualized using MATLAB. Topics Discussed How to build an electric motor dynamometer to characterize the torque, efficiency and power of a small electric motor How to do the mechanical designHow to design the circuitryHow to use Wheatstone bridge circuitryHow to develop the software Tech Used Microchip Technology PIC32 MCUTexas Instruments INA121 instrumentation amplifierMathwork’s MATLABAnalog Devices AD5231BRUZ10Hall effect current sensor ACS758 from Allegro MicrosystemsAdafruit USB-to-TTL Serial CablePuTTY Energy-efficient vehicles provide a viable solution for clean transportation. To maximize efficiency and performance of these vehicles, accurate predictions and measurements are necessary. One way to figure out the most efficient way to accelerate a motor is by measuring torque and angular velocity. Here, efficiency is defined as the ratio of power inputted and outputted by a system. Power can be measured either electrically, as the product of voltage and current (resistance), or mechanically for a rotating shaft, as the product of torque and angular velocity (radians per second). Motor dynamometers are frequently used to characterize efficiency using input electrical power and output mechanical power of a motor." (Extrait de Circuit Cellar n°373)
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