Service manual

13
Curve fi t provides an
exact math e mat i cal
model of your circuit
or device.
Add Two Channels
(Option AY6)
51.2 kHz frequency range on
one and two chan nels
25.6 kHz frequency range on
four chan nels
One or two reference channels
Enhance your productivity by adding
two additional input channels to
your portable analyzer. Having four
channels often means the difference
between solving a problem in the
field and having to schedule time in a
test bay.
Monitor four signals si mul ta neous ly
or use channel one as the reference
channel for up to three simultaneous
cross-channel measurements. Two
totally independent cross-channel
measurements are made by selecting
channels one and three as in de pen-
dent reference channels. All channels
are sampled si mul ta neous ly.
Use triaxial measurements to si mul-
ta neous ly characterize the motion of
mechanical devices in three axes.
For control systems, si mul ta neous ly
measure several points in a single
loop.
Curve Fit and Synthesis
(Option 1D3)
20 poles/20 zeros curve fi tter
Frequency response synthesis
Pole/zero, pole/residue and
polynomial format
Use curve fit and synthesis in the
35670A to take the guesswork out
of your design process. The 20-pole
and 20-zero multiple-degree-of-freedom
curve fitter calculates a mathematical
model of your system or circuit from
measured frequency response data.
The model can be expressed in pole/
zero, pole/residue, or polynomial
format.
Transfer the circuit model to the
synthesis function to experiment
with design modifications. Add and
delete poles and zeros, change gain
factors, time delays, or frequency
scaling, then synthesize the fre-
quency response from the modified
model. Design mod i fi ca tions are
tested without ever touching a
soldering iron.