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P S - 2 0 0 6 G L X P o w e r A m p l i f i e r
O u t p u t - c o n t r o l C a l c u l a t i o n s
8
To Return to the Output Screen
1.
Press
and hold
.
2.
Press (once or several times) until the Output Screen Appears.
3.
Release .
Output-control Calculations
The GLX's Calculator screen provides three special functions for con-
trolling the signal output. In the Calculator's third Functions menu
(press
three times), the functions are abbreviated to
outswitch
,
outfreq
, and
outvolume
. Parameters of the output that are not affected by
a calculation are set by the values in the Output screen.
For more information on using these functions and the GLX calculator, see the
GLX Users' Guide.
outputswitch(1,
state
)
Use the
outputswitch
function to turn on or
off the Power Amplifier output. The first argument should equal 1. The
second argument,
state
, can equal any number and determines whether
the output is OFF or ON.
•
If
state
= 0, then the output is OFF.
•
If
state
≠
0, then the output is ON.
outputfreq(1,
frequency
)
Use the
outputfreq
function to set the
frequency of the Power Amplifier output. The first argument should
equal 1. The second argument,
frequency
, sets the frequency, in Hz, of
the output signal. The frequency can be set between 0.1 Hz and 5000
Hz.
outputvolume(
voltage
)
Use this function to set the amplitude of a
periodic function, or the DC voltage. The argument of the function can
be set between
−
10 V and 10 V.
Using Power Amplifier Measurements
In addition to functioning as an output device, the Power Amplifier also
acts like a sensor, sending information about its voltage and current out-
put back to the GLX. The GLX can record these measurements along
with measurements for other sensors. You can select the measurements
for display (in a Graph, Table, Digits, or Meters screens), use them in
calculations (in the Calculator screen), and change their sampling rates
and other settings (in the Sensors screen). In most ways, Power Ampli-
fier measurements are the same as other sensor measurements.
Note: The measurements may not be valid when the over-current indicator
on the Power Amplifier is lit.
About the Measurements
Voltage:
The instantaneous output of the Power Amplifier.
F1