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2
Figure 2-45
8 Measure the S
9 Set the bridge resistance to 100 Ω by pressing
10 Again, measure the S
11 Set the bridge resistance back to 200 Ω and power off the N432A. Disconnect
12 Now, use a digital voltmeter (DVM) to measure resistance. Connect a DVM
13 Round off the DVM reading to two decimal places. Record this value as the
14 Power on the N432A and set the bridge resistance to 100 Ω. Then, power off
98
N432A
A
Connection diagram for VRC measurement
parameter on the network analyzer. The S
11
equivalent to the reflection coefficient of the sensor, Γ
magnitude of the sensor, |Γ
coefficient.
arrow key to highlight the Bridge Resistance value field. Press
display the Bridge Resistance pop-up list and use the up/down arrow key to
highlight 100 ohm, then press
equivalent to Γ
. Record the value of |Γ
2
the sensor from the N432A.
between the N432A rear panel V
thermistor mount end of the sensor cable. Verify that no power is applied to
the N432A.
first internal bridge resistance, R
the N432A.
Thermistor
sensor
|, which is an absolute value of the reflection
1
to enter the value.
parameter on the network analyzer, which is now
11
|.
2
output connector and pin 1 on the
RF
, of the N432A.
1
Network analyzer
parameter is
11
. Record the VRC
1
and using the up/down
Keysight N432A User's Guide
to
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