Pulse generator + Oscilloscope + Coaxial cable

Discussion in 'Homework Help' started by klinger, Dec 11, 2015.

  1. klinger

    Thread Starter New Member

    Dec 11, 2015
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    A pulse generator connected to an oscilloscope, with impedance of 1MΩ // 25pF via a 2m long 50Ω coaxial cable. On the oscilloscope you will find a graph, attached jpg. What is the pulse generator emf and internal resistance and voltage amplitude of the pulse on the cable?
     
  2. Picbuster

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    Dec 2, 2013
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  3. dl324

    Distinguished Member

    Mar 30, 2015
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    @Picbuster In the Homework Help forum, standard procedure is to ask students to describe their understanding and/or show their best effort before giving pointers. They learn more that way and it's less likely to be considered cheating.
     
  4. klinger

    Thread Starter New Member

    Dec 11, 2015
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    pco.jpg
    Zin=1MΩ, Z0=50Ω, Zin>>Z0 => Γ=1
    voltage amplitude of the pulse on the cable:
    V0=E*(Z0/(Z0+Rs))
    interpret
    my interpretation of the graph is E=5, have I interpreted right? pulse.jpg
     
  5. MikeML

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  6. Bordodynov

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    May 20, 2015
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    See

    Pulse_generator+Oscilloscope+Coaxial_cable.png
     
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