pico Technology PicoScope 6000A Series, Руководство пользователя

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Glossary 8
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4 Glossary
AWG. Arbitrary waveform generator. A signal generator that can play back a
waveform of any shape defined by the user.
Bandwidth. The input frequency at which the measured signal amplitude is 3 decibels
below the true signal amplitude.
Buffer size. The size of the oscilloscope buffer memory, measured in samples. The
buffer allows the oscilloscope to sample data faster than it can transfer it to the
computer.
ETS. Equivalent time sampling. A sampling mode that increases the effective
sampling rate of the oscilloscope by capturing multiple cycles of a signal and
combining them. This technique works only with repetitive, stable signals such as
pulse trains.
Function generator. A signal generator that produces standard waveforms such as
sine and square waves.
GS. Gigasamples (approx. 1 billion samples).
Maximum sampling rate. A figure indicating the maximum number of samples the
oscilloscope can acquire per second. The higher the sampling rate of the oscilloscope,
the more accurate the representation of the high-frequency details in a fast signal.
MS. Megasamples (approx. 1 million samples).
PC Oscilloscope. A virtual instrument formed by connecting a PicoScope oscilloscope
to a computer running the PicoScope software.
PicoScope software. A software product that accompanies all PicoScope
oscilloscopes. It turns your PC into an oscilloscope, spectrum analyzer and multimeter.
Timebase. The timebase controls the time interval that each horizontal division of a
scope view represents. There are ten divisions across the scope view, so the total time
across the view is ten times the timebase per division.
USB 2.0. Universal Serial Bus. This is a standard port used to connect external
devices to PCs. The port supports a data transfer rate of up to 480 megabits per
second, so is much faster than the RS-232 COM ports found on older PCs.
Vertical resolution. A value, in bits, indicating the precision with which the
oscilloscope converts input voltages to digital values.
Voltage range. The range of input voltages that the oscilloscope can measure. For
example, a voltage range of ±100 mV means that the oscilloscope can measure
voltages between –100 mV and +100 mV. Input voltages outside this range will not
damage the instrument as long as they remain within the protection limits stated in
the
Safety warnings .