Datasheet

PicoScope 4444 differential oscilloscope
Automatic measurements
Manually measuring the waveform using rulers has its place, but for greater accuracy, PicoScope
can calculate a range of measurements automatically, displaying them as a table of measurements
for troubleshooting and analysis. Using the built-in measurement statistics you can see the average,
standard deviation, maximum and minimum of each measurement as well as the live value.
You can add as many measurements as you need on each view, with a choice of 15 different
measurements in scope mode and 11 in spectrum mode, including AC RMS, peak to peak
and THD. For a full list of the available measurements, see Automatic Measurements in the
Specifications table.
Rulers
PicoScope 6 contains a full set of rulers to help you make onscreen measurements. You can use just
one ruler to make an absolute measurement, or a pair to make a delta measurement. All of them
are easy to use - just use the colored ruler handles to drag the rulers into position.
• Signal rulers for every channel (including math channels and reference waveforms) help you to
measure the signal amplitude on scope, spectrum and XY views.
• Time and frequency rulers let you measure time on a scope view and frequency on a
spectrum view.
• Phase rulers help you measure the cyclic timing of a waveform on a scope view. This
measurement is made relative to a time interval that you specify in degrees or percentage
points.
High-speed data acquisition and digitizing
The supplied drivers and the software development kit (SDK) allow you to write your own software and
interface to popular third-party software packages such as National Instruments LabVIEW and MathWorks
MATLAB.
The drivers support data streaming, a mode that captures gap-free continuous data over USB direct to the PC
at rates of up to 100 MS/s, so you are not limited by the size of the scope’s buffer memory. Sampling rates in
streaming mode are subject to PC specifications and application loading.
Beta drivers are also available for use with Raspberry Pi, BeagleBone Black, and similar ARM-powered
platforms, enabling you to control your PicoScope using these small, single-board Linux computers.