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Product Data

Brüel & Kjær

B

K

Microsoft is a registered trademark and Win-
dows is a trademark of Microsoft Corporation

The Falcon

 Range 

1

/

2

 Microphones — Types 4188 to 4193

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

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

Introduction

The six 

1

/

2

 condenser microphones

of Brüel & Kjær’s Falcon

 Range cov-

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

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. Furthermore, each
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

Types 4189 to 4193 are packaged as
shown above.

Selecting a Microphone for 
Your Needs

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)

The Falcon

 Range microphones are

six new high-quality, 

1

/

2

″ 

diameter pre-

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.

Содержание 4188

Страница 1: ...ch Robust and Stable They are robust and suffer less than a 0 1 dB change in sensitivity when 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 Furthermore each Falcon Range microphone comes with an extended guarantee...

Страница 2: ... by Falcon Range microphones Prepolarized Free field 1 2 Microphones Types 4188 and 4189 These are prepolarized free field mi crophones which differ mainly in fre quency range and sensitivity Both can be used for measurements in ac cordance with IEC 651 Type 1 The Type 4188 is also suited to ANSI S 1 4 1983 Type 1 measurements when fitted with the Random inci dence Corrector DZ 9566 supplied If yo...

Страница 3: ...e g in connection with telephone and hear ing aid testing Furthermore it also satisfies the requirements of ANSI S 1 12 Type M Pressure field 1 2 Microphone Type 4193 and Low frequency Adaptor UC0211 Has an extended low frequency range which cuts off between 10 mHz and 50 mHz The high end of its frequency range extends up to 20 kHz In addi tion to random field or coupler meas urements it can also ...

Страница 4: ...r form The tabular data can be printed out and stored in new files for further use They can also be accessed by a suitable spreadsheet for further processing Help in the form of hypertext is included throughout to guide you Fig 2 An example of a Calibration Chart front and rear sides supplied with a Prepolarized Condenser Microphone Type 4188 Fig 3 An example of a Calibration Chart supplied with a...

Страница 5: ...HRAGM RESONANCE FREQUENCY 14 kHz 90 phase shift CAPACITANCE POLARIZED 250 Hz 14 pF EQUIVALENT AIR VOLUME 101 3 kPa 46 mm3 CALIBRATOR LOAD VOLUME 250 Hz 260 mm3 PISTONPHONE TYPE 4228 CORRECTION with DP 0776 0 00 dB CARTRIDGE THERMAL NOISE 14 6 dB A 15 3 dB Lin Individually calibrated UPPER LIMIT OF DYNAMIC RANGE 3 distortion 146 dB SPL MAXIMUM SOUND PRESSURE LEVEL 158 dB peak Environmental OPERATIN...

Страница 6: ...IVALENT AIR VOLUME 101 3 kPa 11 6 mm3 CALIBRATOR LOAD VOLUME 250 Hz 190 mm3 PISTONPHONE TYPE 4228 CORRECTION with DP 0776 0 02 dB Individually calibrated CARTRIDGE THERMAL NOISE 20 0 dB A 21 4 dB Lin UPPER LIMIT OF DYNAMIC RANGE 3 distortion 162 dB SPL MAXIMUM SOUND PRESSURE LEVEL 171 dB peak Environmental OPERATING TEMPERATURE RANGE 30 to 150 C 22 to 302 F can be used up to 300 C 572 F but with a...

Страница 7: ...NCY 23 kHz 90 phase shift CAPACITANCE POLARIZED 250 Hz 18 pF EQUIVALENT AIR VOLUME 101 3 kPa 8 8 mm3 CALIBRATOR LOAD VOLUME 250 Hz 190 mm3 PISTONPHONE TYPE 4228 CORRECTION with DP 0776 0 02 dB Individually calibrated CARTRIDGE THERMAL NOISE 19 0 dB A 21 3 dB Lin UPPER LIMIT OF DYNAMIC RANGE 3 distortion 162 dB SPL MAXIMUM SOUND PRESSURE LEVEL 171 dB peak Environmental OPERATING TEMPERATURE RANGE 3...

Страница 8: ...land 0 22 40 93 92 Portugal 1 47114 53 Singapore 65 275 8816 Slovak Republic 07 37 6181 Spain 91 36810 00 Sweden 08 71127 30 Switzerland 01 94 0 09 09 Taiwan 02 713 9303 United Kingdom and Ireland 0181 954 236 6 USA 1 800 332 2040 Local representatives and service organisations worldwide Brüel Kjær reserves the right to change specifications and accessories without notice Specifications UC0211 sup...

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