Physics307L:People/Klimov/Oscilloscope: Difference between revisions
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*Vf=Vo·exp(-t/τ) | *Vf=Vo·exp(-t/τ) | ||
*τ=22.2ms | *τ=22.2ms | ||
===Conclusions=== | |||
*I think I learned a fair amount of information regarding what an oscilloscope does and how to use it. I learned how to use triggering, make measurements and how to operate the device in general. I am sure that this will be a handy skill which I will continue to develop throughout the coming weeks and semesters. Unfortunately I didn't quite understand what exactly AC and DC coupling did (although Dr. Koch showed me what AC coupling was useful for). However, I am sure that this will become more clear as the semester progresses. | |||
*I would say that I didn't really go outside of the standard procedure too much, unfortunately. Although I did get to try out many of the oscilloscopes controls, there are many more that I was unable to mess around with due to the time constraint. I think that the lab was far too short to explore everything. In fact, I never even got to the FFT section, or the one past it. | |||
Revision as of 20:09, 8 September 2008
Oscilloscope Lab Summary
In this lab, I learned how to use an oscilloscope and some general information about it.The main overview of the lab is provided in the Lab Manual, and my procedures and whatnot are provided in my lab notebook:
Main Data
- Fall Time= 51.20ms (cursor)
- Fall Time= 48.24ms (measured)
The first number, as noted, was obtained by using the cursor measurements. More specifically, I cropped my voltage drop, subtracted from it 10% and found, once again by cropping, the time interval during which the voltage drop took place. I was fairly confident with this measurement until I had the oscilloscope take the measurement for me, which claimed that the fall time was 48.24ms. This discrepancy in my results forces me to conclude that I could have an uncertainty of at least ±3ms, given that the oscilloscopes measurement was perfect. From here, I used my cursor measurement (because I hope that it is more accurate than the oscilloscopes measurement) to calculate the time constant of the oscilloscope using:
- Vf=Vo·exp(-t/τ)
- τ=22.2ms
Conclusions
- I think I learned a fair amount of information regarding what an oscilloscope does and how to use it. I learned how to use triggering, make measurements and how to operate the device in general. I am sure that this will be a handy skill which I will continue to develop throughout the coming weeks and semesters. Unfortunately I didn't quite understand what exactly AC and DC coupling did (although Dr. Koch showed me what AC coupling was useful for). However, I am sure that this will become more clear as the semester progresses.
- I would say that I didn't really go outside of the standard procedure too much, unfortunately. Although I did get to try out many of the oscilloscopes controls, there are many more that I was unable to mess around with due to the time constraint. I think that the lab was far too short to explore everything. In fact, I never even got to the FFT section, or the one past it.
