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Solutions for Measuring Permittivity and
Permeability

Application Note 1297
Meeting Tomorrow's
Material Test Challenges
Solutions For Your Application

Selecting the Best Solution
Performance of base materials
has a fundamental impact on the
success of your end-product

Whether you are looking for
simple measurement hardware for
QA, or need a sophisticated
package with fixtures, instrument-
ation, and software to improve
your design, HP has the right tools
for you. For testing bulk materials
you need fixtures, precise instru-
mentation, and perhaps software
to analyze and output your test
data in an user-definable format.
Fixtures are a vital link that allow
an instrument to connect from the
front panel to the material under
test. Fixturing is never easy; your
sample may be freezing cold or
boiling hot, liquid or solid, thick or
thin. Your testing could be at low
frequencies, at millimeterwave, or
somewhere in between. And so,
you have to pick the right fixture
for the right physical and
electrical test conditions.

Instruments perform the actual
material measurements using a
number of techniques. LCR meters
are an excellent choice when your
application requires a low Application/Test Requirement
frequency test at discrete
points. Impedance
analyzers have the
benefits of extended
frequency range, a
synthesized source, and
swept measurement
capability. Network
analyzers are the best
solution for swept high
frequency measurements.
The information on this
page will assist you in
understanding HP's wide
range of test fixtures, versus frequency. The chart is a
instrumentation, and software. quick reference application guide
The figure depicts test complexity to HP solutions.


2
DC Resistivity
Cell--
HP 16008B
The HP 16008B
DC resistivity cell
and the
HP 4339B high
resistance meter
will make sheet
material
measurements of
resistance, surface
resistivity, and
volume resistivity.
The HP 4339B
outputs a dc
voltage to the HP 16008B which
applies it across electrodes to the Dielectric Text Fixture--
material under test. The shielded HP 16451B
test enclosure reduces ambient
noise and protects the user from The dielectric test
high voltage test conditions. fixture and any
Different electrode sizes are HP four terminal
available to meet various sample pair LCR meter/
flat sheet requirements. The impedance
material under test can be square analyzer will make
or circular in shape. The capacitance and
HP 16008B can only be used with dissipation factor
HP 4339B high resistance meter. measurements.
Using a guarded
Key Specifications: parallel plate
technique, the
DC voltage: 0.1 to 1000V
HP 16451B is ideal
Resistance range: 1 k