ECE2274-Notes01

ECE2274-Notes01 - ECE 2274 Lab 1 Notes 1. What is an...

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ECE 2274 Lab 1 Notes 1. What is an Oscilloscope and how does it work? Basically a graph-display device, draws a graph of an electrical signal. Most cases show how the electrical signal change over time. “Y” axis represents voltage. “X” axis represents time. The scope can be used to determine amplitude of a voltage waveform. We can determine the peak-to-peak voltage and the offset voltage. We can also determine the frequency and period of a waveform. The scope is a valuable tool to help determine what is taking place in an electrical circuit. Analog scopes have been replaced by digital sampling scopes, which use an A D converter to capture the waveform. The A D converter must be fast enough to quickly sample and store high frequency waveform data points. Scope A D accuracy and resolution are secondary to speed. The accuracy and resolution also depend on the vertical scale because a higher voltage scale attenuates the signal down to a few data bits. For best measurement accuracy, you should always try to display the waveform as close to full scale as possible. The A
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ECE2274-Notes01 - ECE 2274 Lab 1 Notes 1. What is an...

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