BRUEL & KJAER 1617 - General Features and Uses

GENERAL FEATURES:
• . 41 third-octave filter
bands, centre frequencies
2 Hz to 20 kHz
• 41 overlapping octave
filter bands, centre
frequencies 2 Hz to 20 kHz
• Third -octave and octave
filters in accordance with
IEC 225 - 1966 , DIN
45651 and 45652, and
ANSI S 1. 11-1966
• Digital display of selected
centre frequency and
bandwidth
• Built-in A-weighting
network
• Electronic control of filter
switching
• Manual or Level Recorder
controlled filter scanning
• Selectable scan start
position to save time,
eliminates low frequencies
when required
• Input overload warning
circuit
• Floating or grounded
Signal input
17 - 094
types 1 61 7 and 1 61 8
Third-Octave and
Octave Band Pass
Filters
-
e -
-
e _
~ ~ '.1 .... _ _ -::-::
I ., --- ; ~ ~=
. ,~ .
1618
ADDITIONAL FEATURES
TYPE 1617 :
' ''' ''' ''I\l'''''
I ... · '<) . ... . ~ .. _. f·· ....
• 9 third-octave filter bands,
centre frequencies 25 kHz
to 160 kHz
• Built-in B, C, D-weighting
networks
• Comprehensive connection
facilities for use with other
instruments
• Operation of front panel
controls via built-in IEC
Interface
• Selection and control of
averaging time program for
the measuring instrument
USES:
_-.....e-no __
---
' .... , ...
(With suitable Measuring
Amplif iers)
•
Third-octave and octave
frequency analysis of
sound and vibration
• Measurement of frequency
response
• Measurement of sound
transmission loss
•
Measurement bf vibration
isolation
• Testing acoustic materials
• Recording of spectrograms
with constant confidence
level (1 61 7)