Brüel & Kjær 4188 Product Data

Product Data
™
The Falcon
USES:
For sound level meters
In noise measurement systems satisfying IEC and
ANSI standards
Transport-noise measurements
Architectural acoustics
Electro-acoustics
FEATURES:
Choice of free or pressure-field frequency response
™
The Falcon Range microphones are
" diameter pre-
1
six new high-quality, /
2
cision condenser microphones. They
cover requirements for free-, random-
and pressure-field measurements.
They are the latest in Brüel & Kjær's
range of precision microphones for ac-
curate and reliable electro-acoustic,
IEC or ANSI sound measurements.
Their corrosion resistance has been im-
proved and their temperature range
has been extended. They are the result
of a new and robust design which en-
sures greater reliability and accuracy.
Introduction
" condenser microphones
1
The six /
2
™
of Brüel & Kjær's Falcon
er, between them, a very wide range
of needs and applications.
They are the culmination of 40
years of leadership in top quality con-
denser microphones for precision
acoustic measurements. These Fal-
™
con Range microphones will meet
your demands whether they be in
complying with ANSI or IEC stand-
ards or in acoustic research.
Robust and Stable
They are robust and suffer less than
a ±0.1 dB change in sensitivity when
Microsoft is a registered trademark and Win-
dows is a trademark of Microsoft Corporation
Brüel & Kjær
" Microphones — Types 4188 to 4193
1
Range /
2
Range cov-
subjected to an IEC 68-2-32 1 m drop
test onto a hard wooden block. They
are made of carefully selected mate-
rials and alloys to ensure excellent
stability and are virtually unaffected
by industrial and similarly hostile
environments.
™
Falcon Range microphone comes
with an extended guarantee period of
three years.
During manufacture, each micro-
phone is artificially aged at a high
temperature to ensure good long-
term stability.
No ecologically damaging materials
are used in the manufacture and
packaging of these microphones. The
B
K
Choice of pre- or external polarization
Wide dynamic ranges typically from 14.2 dB(A) to
146 dB and 20 dB(A) to 162 dB (3% distortion limit)
Very wide operating temperature range and low
ambient-temperature coefficient
Individual calibration charts
Individual data disks for Types 4189 to 4193 for use
®
with Microsoft Windows
Withstand IEC 68-2-32 1 m drop test (<0.1 dB
sensitivity change) and industrial environments
™
Falcon Range product with a three-year guarantee
Types 4189 to 4193 are packaged as
shown above.
Selecting a Microphone for
Your Needs
Furthermore, each
To make sure you select the right mi-
crophone to match your needs, you
will probably have to consider one or
more of the following:
™
Standards (IEC or ANSI)
Free- or pressure-field response
Frequency range
Polarization (0 V or 200 V)