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Four-domain
System
for
Easy
Operation
Easy-to-use
Four-domain
FFT
Analyzer
Digital
spectrum
analyzers
usually
have
many
four
measurement
area
modes.
Just
select
the one
functions
for a
wide
range
of
measurement
purpose.
you
need
and set the
software
keys
for
that
mode
They
are
hard
to
operate
because
everything
must
be
alone.
You
don't
have
to worry
about
other
analysis
included,
even
if only a few
functions
are
needed
at
functions
and
setting
conditions,
that
time.
The
R9211E
makes
it
much
simpler.
It has
o
Waveform Measurement
Mode
In this mode, the analyzer can analyze a signal in the time domain
faster than conventioanl models can. The anti-aliasing filter can be
turned on or off, so you can use the analyzer as a 16-bit/256 kHz
sampling digital osciloscope. This means that the analyzer is suitable
for the analysis of transient sound phenomena on an acoustic
instrument in the time domain, for a start characteristic test on an
engine or motor, for POWER ON RESET signal waveform analysis,
and for a differential linearity test on a D/A converter.
• Time-frequency
Analysis
Mode
In this mode, the analyzer can evaluate the sounds of a musical
instrument or the reverberant characteristic of a concert hall by
analyzing the time fluctuation of a specific spectrum (level monitor
function).
This mode can be used to analyze the spectrum fluctuation time
characteristic of a VTR's wow and flutter component or the jitter
phase fluctuation time characteristic (phase monitor function).
• Spectrum Measurement
Mode
The analyzer has a 90 dB (typical value) wide dynamic measuring
range and realizes -140 dBV (typical value in 2 kHz range). This is
useful for approximate analysis of a spectrum.
•
Frequency
Response
Function
Measurement
Mode
In the frequncy response function measurement mode, the
frequency resolution can be varied from 25 lines to 800 lines.
In addition, a sensor with a built-in amplifier or an impulse hammer
can be directly connected to the two channels of power supply built
into the R9211E to provide an acceleration sensor to measure the
transfer function of a structure.
A Example of three-screen simultaneous display
A Example of 1/3-octave analysis
3