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The 3561A is a low frequency, high performance dual
channel dynamic signal analyzer. Displays include a three-dimensional
spectral map and time waveforms. The 3561A incorporates a 40K sample
time buffer for later measurements and allows for acoustic measurements
with its FFT-synthesized 1/3 and 1/2 octave measurements, together with
the built-in analog A-weighted filter.
The analyzer also has a built-in tracking generator for
stimulus-response measurements . With built-in waveform math, magnitude
and phase measurements are possible. Digital processing is used to
provide ultra-narrow resolution bandwidths up to 640 µHz. Digital
processing also speeds up measurements; a measurement with 1 Hz
resolution requires only a 1.5 second sweep.
In addition to spectrum measurements, the 3561A displays time waveforms
similar to oscilloscope displays. A 40 K sample time buffer captures
transients for examination in the time domain or analysis in the
frequency domain. The 3561A is also an excellent analyzer for acoustic
testing. |
