Type 4192 is designed for high-precision coupler
measurements or ANSI noise measurements. Being
externally polarized, Type 4192 must be used with a
classical preamplifier.
USES
Precision coupler measurement
Premium class ANSI sound level meters
General random incidence measurements
FEATURES
Sensitivity: 12.5mV/Pa
Frequency: 3.15 Hz 20 kHz
Dynamic Range: 19 162 dB
Temperature: 30 to +300°C ( 22 to +572°F)
Polarization: 200V

Use of Pressure-field Microphones
Pressure-field microphones are optimised to have a flat
frequency response in a pressure field. The microphones
should be used for making measurements in small, closed
couplers or close to hard, reflective surfaces.
Type 4192 is suited for situations where a robust and
stable pressure-field microphone is required.
Manufacturing and Stability
A press-fitted, stainless-steel diaphragm ensures superior
long-term stability and mechanical robustness Type
4192 will withstand the 1m drop test of IEC60068 2 32.
All Brüel&Kjær Measuring Microphones are assembled
in a clean room. This ensures that the microphones
maintain their inherent low noise floor and high stability,
even when used in environments with a combination of
high humidity and high temperature.
Polarization Voltage
Type 4192 requires an external polarization voltage and
must therefore must be used with a classical preamplifier.
Externally polarized microphones may be used at higher
temperatures without severe changes in sensitivity.
TEDS Microphones
Type 4192 is available in TEDS combinations with the
classical Microphone Preamplifier Type 2669. The TEDS
microphone is considered one unit and has been sealed in
a clean environment. The TEDS is programmed with the
loaded sensitivity of the actual cartridge and the data is
therefore readily available. The default TEDS template is
to IEEE P 1451.4 but TEDS to IEEE 1451.4 is available on
request.
Inpidual Calibration Data
Each Type 4192 comes with an inpidual calibration
chart with information about the open-circuit sensitivity
and frequency response in a pressure field as well as the
electrostatic actuator response.
An enclosed mini-CD contains the inpidual calibration
data at 1/12-octave frequencies plus a wealth of technical
information, such as the influence of different essories,
response in different sound fields and much more. Using
the CD data and the REq-X feature of PULSE , a realtime
correction for different measurement situations, can
increase measurement uracy.