CLIOwin 7 PCI User's Manual - Audiomatica
CLIOwin 7 PCI User's Manual - Audiomatica
CLIOwin 7 PCI User's Manual - Audiomatica
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0.0<br />
CLIO<br />
180.0<br />
dBV<br />
Deg<br />
-10.0 108.0<br />
-20.0 36.0<br />
-30.0 -36.0<br />
-40.0 -108.0<br />
-50.0 -180.0<br />
10 Hz<br />
100 1k 10k 20k<br />
Figure 13.12<br />
Let’s now proceed with measuring the device. Connections need to be changed as in<br />
Fig. 13.13. We are now going to measure the voltage across Rs, which is proportional<br />
to the current in the device. Leaving everything in the Sinusoidal menu as it was for the<br />
previous measurement we obtain Fig.13.14. It seams a strange shape if you are not<br />
used to. But in fact we are measuring Current here and, Voltage being constant, it<br />
decreases at resonance (from Ohm’s law I=V/R).<br />
INPUT A<br />
CLIO<br />
INPUT B<br />
OUTPUT A<br />
OUTPUT B<br />
RS<br />
BLACK<br />
RED<br />
POWER AMPLIFIER<br />
Figure 13.11<br />
-10.0<br />
CLIO<br />
180.0<br />
dBV<br />
Deg<br />
-20.0 108.0<br />
-30.0 36.0<br />
-40.0 -36.0<br />
-50.0 -108.0<br />
-60.0 -180.0<br />
10 Hz<br />
100 1k 10k 20k<br />
Figure 13.14<br />
What we do from now on is just post processing. Leaving the last measurement in<br />
memory, open the Processing Tools Dialog from within Sinusoidal (MLS has the same),<br />
select the CV icon and input the data you should know.<br />
The Ohm value is that of the Sensing Resistor while in the edit box you see the name<br />
of our previous file, cvreference.sin, including its own path which could be different in<br />
your case.<br />
164 Chapter 13 - Measuring impedance and T&S parameters
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