Artigo Revisado por pares

'Exploring' the response of an LC circuit to the stimuli of external electromagnetic energy pulses through MBL

1997; IOP Publishing; Volume: 18; Issue: 4 Linguagem: Inglês

10.1088/0143-0807/18/4/007

ISSN

1361-6404

Autores

Ricardo Trumper, Moshe Gelbman,

Tópico(s)

Engineering and Technology Innovations

Resumo

Microcomputer-based laboratory (MBL) tools have been developed which interface with a great variety of computers. Students use these tools to collect physical data in real time which can later be manipulated and analysed. This new investigative method together with a high standard of precision enables students to investigate many principles of physics that have heretofore not been feasible. In this paper, we describe some examples of experiments designed for college students in an introductory physics course, in which energy pulses were transferred to an LC circuit. We mainly show the response of the circuit to low-frequency external energy pulses and the influence of the distance between the source and the absorbing LC circuit on the energy absorbed by the circuit in its resonant state. The data obtained were analysed by taking advantage of the wide range of facilities in the Explorer MBL. Resumen. Instrumentos de Laboratorio basado en Microcomputadoras (LBM) han sido desarrollados en conjuncion con una gran variedad de computadoras. Estudiantes hacen uso de tales instrumentos para registrar los resultados de experimentos fisicos durante la realizacion del experimento, y luego analizarlos en distintas formas. Este nuevo metodo de investigacion, junto con altas normas de precision, permite que los estudiantes investiguen muchos principios fisicos que hasta ahora no tenian la posibilidad de investigar. En este articulo, describimos algunos ejemplos de experimentos proyectados para estudiantes universitarios en cursos de introduccion a la fisica, en los cuales pulsos energeticos son transferidos a un circuito electrico de tipo LC. Principalmente se analiza la reaccion del circuito al recibir pulsos energeticos de baja frecuencia, y la influencia de la distancia entre el circuito originario de los pulsos y el circuito receptor sobre la energia absorbida por el circuito receptor en estado de resonancia. Los resultados obtenidos fueron analizados aprovechando la extensa gama de facilidades que ofrece el sistema Explorer LBM.

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