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Hello everyone!Help me please with osciloscope manual.We have

  1. Jan 30, 2012 #1
    Hello everyone!

    Help me please with osciloscope manual.
    We have been translating electrical characteristics, and there is a couple of questions.

    mArms (what is it milli Amperes root-mean-square?)
    System aberratoins 10% p-p (is it peak-to-peak?)
    What is a front end of oscilloscope? Is it a primary transducer or smth?

    Thank you
  2. jcsd
  3. Jan 30, 2012 #2


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    Gold Member

    Re: Oscilloscope

    Yes, mArms stands for milliampres root mean squared.

    This is from Wikipedia: “In mathematics, the root mean square (abbreviated RMS or rms), also known as the quadratic mean, is a statistical measure of the magnitude of a varying quantity. It is especially useful when variates are positive and negative, e.g., sinusoids. RMS is used in various fields, including electrical engineering.

    It can be calculated for a series of discrete values or for a continuously varying function. The name comes from the fact that it is the square root of the mean of the squares of the values. It is a special case of the generalized mean with the exponent p = 2.”
    See the below Wiki page for more details and examples:

    Yes, p-p stands for peak-to-peak

    Too bad the term “front end” is ambiguous, so this is just a guess. The front end of the oscilloscope often refers to the first input amplifier…where the input signal first enters the ‘scope.
  4. Jan 30, 2012 #3
    Re: Oscilloscope

    Thank you so much!
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