5.
TYPICAL
MEASUREMENT
AND
ANALYSIS
SET
-UPS
USING
THE TYPES 1614/15
.....•..........
.
......
.
..
36
Direct analysis
of
sound
....
36
Direct analysis
of
vibration . . . . . . . . . . . . . . 37
Bands
of
Random Noise . . . . . . . . . . . . . . .
38
Analysis
from
Tape Recorder
......
.
.......
38
Low
Frequency Analysis
...............
. .
38
Analysis
of
Transients . . . . . . . . . . . 38
Recording
of
Low
Frequency Sound
........
. . 39
6.
USEFUL
FILTER
INFORMATION
AND
DEFINITIONS
.....
41
Ideal
Filter
(Band-pass)
Effective Bandwidth
Octave
Filter
Centre Frequency
.. .. ..
.
Filter
Band-Edge
Frequencies
Bandwidth
.........
.
......
41
......
42
......
42
. 43
. 43
. 43
Spectrum . . . . . . . . . . . . . . . . . . . . . . 43
Noise
.............................
44
7. SPECIFICATIONS
..........•................
45
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