..Help .Objects

Scope



Graphically display properties of a signal.

Pins
io letter name unit description
in y1-y2inputsvaluechannel 1 and 2 inputs
r1-r2rangevertical range
o1-o2offsetvertical offset
x,texernalTrigger or XY sweep input

Parameters
name option key description
on-offenter
mode oscilloscopeosee below
spectrum analyzers
sonographg
labelslshow labels

Notes

Oscilloscope:

The OScope can plot the amplitude of two signals as they change over time.
Connect the signal to monitor to a Y input.
Use the range inputs to expand the vertical display. The value at the r input corresponds to the height of the display.
Use the offset inputs to move the display up and down. The value at the o input corresponds to the middle of the display.
Adjust the sweep rate using the popup panel. Faster sweep rates show more detail, up to 1 sample per pixel.
The optional trigger input will delay the sweep until the signal crosses zero. You may choose to sweep on the positive, negative or either edge.

Spectrum Analyzer:

The spectrum analyzer shows the frequency content of one frame (1024 samples) of data.
Connect the signal to monitor at the Y input.
Use the r input to set the vertical range. The value at the r pin corresponds to the frequency at the bottom of the display
Set the width of the display using the popup panel.
At smaller widths you can use the o input to shift the display left and right.
The averaging trace shows the average spectrum strength over several frames.

Sonograph:

The songraph plots spectrums on a 2 dimensional graph using color to indicate amplitude.
Connect the signal to monitor at the Y input.
Use the r input to adjust the color scale.
Select the vertical scale using the popup panel.
At lower scales you can use the o input to adjust the display up and down. The value at the o input corresponds to the frequency at the bottom of the display.
Adjust the sweep rate using the popup panel.




©1999-2002 Andy J Turner
All rights reserved.