The current supplied by the circuit to the scope will be roughly 10 times

The current supplied by the circuit to the scope will

This preview shows page 3 - 6 out of 9 pages.

What are two possible advantages of using 10X probes when taking scope measurements? The current supplied by the circuit to the scope will be roughly 10 times smaller which reduces circuit loading. The other possible advantage of using a 10X probes is that they can work with low voltage signals or high-frequency signals which are susceptible to noise pick-up. 2) How does scope know the 10X probes were connected? New scopes has a metallic “sensing” strip, which recognizes the probe. With older scopes you have to plug in a value of n that should be 10 with a 10X probe and make sure that the oscilloscope indicates that the n value is 10. Although, you should always make sure n equals 10 when using 10X probes. Section 2 - Procedure By using BNC-to-BNC cables and a BNC T the Function Generator is connected to Channel 1 of the oscilloscope. Then the other end of the T is connected to the multimeter with a BNC-to-banana cable. The output of the function generator is set to 5V peak-to-peak sine-wave at 500Hz, the DC-offset is set to 0V. By switching between AC and DC coupling it is possible to observe any difference displayed. With DC coupling active a scope image was imported using Keysight BenchView. By using the Cursors feature of the scope the DC offset is measured. Lastly, the DC offset was set to 2V instead of 0V. Observation of any difference between the waves displayed with AC and DC coupling, an image was imported and the DC offset was measured once again.
Image of page 3

Subscribe to view the full document.

Section 2 - Experimental Data Waveform 1 (5 V pp , 500 Hz, +0V DC ): Multimeter Readings: V DC = 0, V AC = 1.767V Cursor Reading: Y max = +2.45V, Y min = -2.5V DC Offset = (2.45 - 2.5)/2 = -0.025V
Image of page 4
Waveform 2 (5 V pp , 500 Hz, +2V DC ): Multimeter Readings: V DC = 1.64, V AC = 1.767V Cursor Reading: Y max = +4.438V, Y min = -0.5V DC Offset = (4.438 - 0.5)/2 = 1.969V Section 2 - Questions and discussion 1) Would you expect the multimeter measurement to change when transitioning from AC to DC coupling on the scope? Why? When choosing DC you will see the actual waveform, including its AC and DC components.
Image of page 5

Subscribe to view the full document.

Image of page 6
  • Fall '06
  • Wang

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Ask Expert Tutors You can ask You can ask ( soon) You can ask (will expire )
Answers in as fast as 15 minutes