Brüel & Kjær 4170 Instruction Manual

Probe Microphone
Type 4170
A horn-coupled probe microphone designed
for sound pressure measurements in places
where normal microphones cannot be used .
It features a wide frequency
ra~e ,
a very
high acoustic orifice impedance and a built-in
preamplifier allowing direct connection to the
B & K Measuring Amplifiers, Frequency Ana-
lyzers and Spectrometers. Delivered with an
individual calibration chart of sensitivity and
frequency response .
BRUEL&K'-'A:.R
I , . . -
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4170