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What types of oscilloscopes are there?
Analog oscilloscope
The ones with a cathode-ray tube screens. They show detailed graphics, and can usually show
high frequencies, but are not suited for observing short processes repeated through a long time
interval or relatively slow processes like the ones in an automobile.
Digital storage oscilloscope
The observed result from the digital storage oscilloscope is almost identical to the analog, but the
signal shown on the DSO can be “frozen still” on the screen, saved on the PC’s hard drive, and
used later, or printed. Further more only the current “screen” shown on the monitor can be saved,
and a sequence of many screens can later be opened and observed through time as an animation.
Any screen saved in the working fail can be printed.
There are two kinds of digital oscilloscopes: independent which are external device, and PC
oscilloscopes. The PC-based oscilloscopes are a new type of "oscilloscope" that consists of a
specialized signal acquisition board, which can be an external USB or Parallel port device, or an
internal add-on PCI or ISA card.
One, dual and multiple-trace oscilloscopes
Depending on the number of measuring inputs, both analog and digital oscilloscopes can be
divided into 3 types: one-trace, dual-trace and multiple-trace oscilloscopes.
Universal and specialized oscilloscopes
Depending on their purpose oscilloscopes are divided into 2 groups – universal and specialized.
In automobile repair, an ignition analyzer is used to show the spark waveforms for each cylinder.
In this way the specialized automobile oscilloscopes are also used for testing injectors, ABS, O2
sensor, quick compression tests, fuel pump, CAN Bus and much more. The Motortester is a
specialized automobile oscilloscope.
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