GETTING
STARTED
19
Fixture Connection
Fixture structure
Background
The standard fixture is a four-wire type with a
common terminal for screen connection. The outer
terminals (Hforse and Lforce) provide the current
and the inner terminals (Hsense and Lsense)
measures the potential.
Diagram
L
FORCE
L
SENSE
H
SENSE
H
FORCE
+
–
GND
(Optional)
Description HFORCE
Carries the signal current source.
Connected to the + side of the device
under test.
HSENSE
Together with Lsense, monitors the
Potential. Connected to the + side of
the device under test.
LSENSE
Together with Hsense, monitors the
Potential. Connected to the – side of
the device under test.
LFORCE
Accepts the signal current return.
Connected to the – side of the device
under test.
GND
If the test component has a large
metal area NOT connected to either
of the terminals, connect the GND
clip to minimize noise level.
LCR-8101
User
Manual
20
Fixture connection
Panel operation
1.
Discharge the test component before connecting
the fixture set.
2.
Connect each fixture terminal to the front panel
BNC connector with matching color.
L
FORCE
L
SENSE
H
SENSE
H
FORCE
3.
Connect the fixture to the test component. If the
component has polarity, connect the H side to
the positive lead and the L side to the negative
lead. Make sure the distance between the lead
base and fixture clip is short enough.
H side
L side
4.
If the test component has an outer case
unconnected to either of the lead, connect the
ground terminal for noise level reduction.