An oscilloscope is a laboratory
instrument commonly used to display and analyze the waveform of
electronic signals. In effect, the device draws a graph of the
instantaneous signal voltage as a function of time.
Oscilloscopes
are used in the sciences, medicine, engineering, and telecommunications
industry. Oscilloscopes are very essential and best friend for
students, maker, hobbyist and electronics enthusiast. While a digital
multimeter can help you measure steady state and RMS (Root-Mean-Square)
voltages, the oscilloscope can not only measure peak-to-peak voltages,
but more importantly provide timing information on your signal. For
instance, have you ever been working with an Arduino controlling a servo
motor that has to have just the right pulse width modulation in order
to spin clockwise instead of counter-clockwise? During your programming,
you may have wondered just how close the pulse width was to what was
needed. With an oscilloscope you can measure these pulses. When dealing
with analog signals, you can use an oscilloscope to see how close you
are to the frequency you need or measure what frequency you need to
filter. With so many digital electronic projects, timing between signals
is extremely important. Therefore, having an oscilloscope is essential
but unfortunately they are very expensive.
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