Lab Report #1 The O-Scope (FINAL COPY)

Lab Report #1 The O-Scope (FINAL COPY) - Section # 001...

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Section # 001 Experiment #: 1 Date performed: 1-28-08 Date due: 2-11-08 The Oscilloscope Principal investigator: Simeon Cherrix______________________________________ Skeptic: Clayton Spiceland _____________________________________ Researcher Jay Patel ___________________________________________ TA Alec Sim____________________________________________ Role I DC AD RC Q1 Q2 PI PG I introduction DC data and calculation AD analysis and discussion RC results and conclusion Q1/Q2 quiz/prelab PI principal investigator points PG personal grade
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Introduction: The purpose of this lab is to become familiar with the oscilloscope, in terms of its various functions and measuring voltage, time, frequency, period, and most importantly, error analysis. The purpose of the first part of the lab is to obtain and understand the minimum and maximum readings of the oscilloscope. The purpose of the second part is to alternate the frequency and understand that voltage is independent of time. The purpose of the last part is to compare Sine vs. Square measurements and understand that the frequency remains the same, but voltage differs. All the equipment was set-up by the TA prior to the beginning of the lab. The function generator controls voltage and time which can be altered to show different scale divisions. First, the volts/div and time/div were adjusted in order to determine the smallest values that can be measured. The adjustments were then reversed in order to determine the largest scale divisions possible. These values were recorded in Part A of the data sheet, as well as with the uncertainty of each. The smallest and the largest voltage readings were 4mV and 10V, respectively, with the uncertainty being 1/20 of those values. The smallest and largest time readings were 1nsec and 10sec, respectively, with the uncertainty being 1/20 of those values. In the second part, the function generator was then adjusted to yield a sine wave of about 500 Hz (Hertz). The frequency and the volts/div were recorded in Part B of the data sheet. The group then adjusted the time/div to yield ~10 cycles on the screen. This enabled the group to visualize the peaks, cycles and periods clearly. The peak to peak distance was then recorded in Y divisions (one full box) and then by the tick marks (divisions within the boxes). These values were also recorded in Part B of the data sheet and repeated for two more frequencies of 250 Hz and 1 kHz. The group then calculated the root mean square voltage by means of the equation. This part of the lab showed that the voltage is independent of time, which can be seen through the actual values obtained.
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In the third part, the lab the generator was set to 500 Hz with a sine wave and the time/div and generator frequency was recorded in Part C of the data sheet. The group then measured the number X divisions for the sine wave to complete two cycles. To do this, the time/div was adjusted to show only two full cycles in order to get an accurate measurement. The number of X divisions was then divided by two and recorded in Part
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Lab Report #1 The O-Scope (FINAL COPY) - Section # 001...

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