Techmemo LAB1 - I am writing this memo to convey my ability...

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I am writing this memo to convey my ability to use the TDS-series digital oscilloscope. In order to prove my comprehension of the many scope capabilities, this lab will use a mechanical switch (Figure 1 in the Appendix). Switch bouncing is a problem that is inevitable when operating mechanical switches. In order to experiment with this theory, knowledge of how to operate a single shot trigger on the oscilloscope is necessary. This trigger control lets the user stabilize repeating waveforms and capture single-shot waveforms. This is essential in this lab because the bounces happen so quickly. When the switch is open (turn off, low-to-high) a bouncing display on the oscilloscope is not expected. This is displayed on Channel 1 of Figure 2 in the Appendix. When the switch is closed (turn on, high-to-low) a bouncing occurs and is shown on Channel 1 of Figure 3 in the Appendix. Figure 4 displays how quickly the bounces are taking place as they are not visible at a 10ms/div time scale. In order to further test my results, I acquired three different turn on transitions and displayed them on the scope view. A scope view of these waveforms is shown in Figure 5. The record length of an oscilloscope is the number of waveform points used to make a waveform record. In the user manual of the scope it is determined that the record length is 2500 for each channel. By acquiring waveform data of one of these Turn-ON transitions, I can find out the actual data points. This chart is shown in Figure 6 and allows me to
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Techmemo LAB1 - I am writing this memo to convey my ability...

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