Frequency Analyzer
Type
2121
A precision mains operated instrument with
selectable
filter
bandwidths
of
1
%,
3%,
10%
and
23,1
% (third octave)
for
constant per-
centage
bandwidth
analysis
of
sound, vibra-
tion and voltage in the frequency range from
20 Hz
to
20 kHz. High Pass, Low Pass and
Band
stop
filters, tuneable over the same
frequency
range., are also provided. Its meter
circuit
contains a true RMS rectifier with
selectable
"Fast"
and
"Slow"
meter damping
for
measurement of signals with crest factors
up
to
5 (14 dB). With a B & K condenser
microphone
and preamplifier it conforms
to
IEC recommendation
179
for
precision sound
level meters.
BRUEL&IK'-'A:.R
r"-r-_..-r"'·'
·
-,
._...
-·
,_
w ..
~ws
--
,,.,ll.,..rll.•tv••r
Tr••:u:n
·~·"*
-
2121
~.._FI~;
~
-
r:-~~--;;;::J
-
To Next Page
Need help?
General
