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dpb

On 01/13/2016 2:08 PM, wrote:
....

DMM's (digital meters) can measure the loads of light bulbs. Now, a
digital oscilloscope is quite a leap from something like an analog
oscilloscope (like the one I think rangerss was talking about).
Digital oscilloscopes are more accurate in measurement than analog
ones.

Not necessarily; they're limited by both the A/D resolution (many are,
after all, only 8-bit) and even Tektronix quotes only 3% vertical
measurement accuracy for many of their scopes.

The digital 'scope also is somewhat susceptible to the same issues as
the DMM in comparison to an analog--the extremely high input impedance
can give rise to the same "phantom" signals if the DUT isn't loaded.

DSOs have advantages of course, otherwise they'd have not taken over
market share but they're mostly in the convenience of actual readout and
the ability to do advanced signal processing on the measurement
directly, _NOT_ so much that they're fundamentally any more accurate.

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