Virtual Laboratory

Virtual laboratory is a collection of applets on introductory topics in Electrical and Computer Engineering. The laboratory provides a user friendly simulation environment which allows the students to experiment with simple circuits and systems connected to standard test instruments including the function generator, oscilloscope and spectrum analyzer.

The applets were originally created to support an introductory course (ECE 200: Introduction to Electrical and Computer Engineering Laboratory) at North Carolina State University, however, they are suitable for other courses, which emphasize analysis of signals in time and frequency domains.

To run the applets, you need a computer capable of running JAVA applets, an internet browser software, which supports frames and has the Macromedia Flash plug-in installed. You can start the individual applets by clicking on the buttons provided below.

Learn how to generate a periodic signal using a function generator and display your signal on the oscilloscope screen. Apply a signal to a circuit with resistors and AC/DC voltage sources and observe the the signal at different nodes. Apply a signal to a simple diode circuit and observe the output signal on the oscilloscope Analyze a signal in time and frequency domains using the oscilloscope and spectrum analyzer. Apply a signal to an amplifier and observe the output signal in time and frequency domains. Apply a signal to an inverting or non-iverting amplifier and observe the output in time and frequency domains. Apply two signals to a summing or subtracting amplifier and observe the signal in time and frequency domains. Apply a signal to a low-pass filter and abserve the output signal in time and frequency domains. Apply a signal to an equalizer and observe the output signal in time and frequency domains.
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