background: question: a) What is the use of the oscilloscope? b) What is the mai

Question

background:

question:
a) What is the use of the oscilloscope? b) What is the main use of the function generator? c) Briefly describe an application, in which knowing the rise time of a signal is important?

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Explanation / Answer

Solution:

a) An oscilloscope is an instrument which is used to study and analyse the waveforms of electrical signals . It generates a graph in two dimensions.

Its purpose is to observe how the signals will vary with time. A graph between time on the X axis and Voltage on the Y axis is generated.

Oscilloscopes are Signal Analysers. The experimenter can see the picture of the signal in the form a graph between V and t. That helps in getting the amplitude , frequency and the overall shape of the signal.

b) A function generator is an instrument which generates different types of waveforms.

Common waveforms are saw tooth , square wave , triangular and sine waves.

Function generators are signal sources that provide a specific voltage that can be applied over a specific time , like a sine wave signal or a triangular wave signal etc.

The signals generated by the function generator are used to control other apparatus, ( for example like Superconductivity or NMR experiments ) .

c) Rise time is the time taken by a signal to change from a specified low value to a specified high value , in electronics. Another way of stating this is it is the time taken for the signal to go from 10% to 90% . (since time rises, frequency range decreases) .

It is used in rise time accelerator circuits .

When a fast rising current transition is applied to a transformer When choosing a current monitor , the specified useable rise time should be Less than the rise time of the current pulse to be viewed.

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