BRUEL & KJAER 4230 - Further Calibration Methods

Sound level
[dB]
± 0.05dB/100 mbar
94.3
94.2
[/~
vW$ 0 [/~
[/ ~
~
v ~
[/ ~
W#~ ~&
I) ~
...
94.1
v W§#~
V ~ffi
v t///~
vW#/~
~
~
17 [/
[/ ~~
~ ~
v W~
v~//~
~
~
~c.: l/
94
~
/ 8//#/~
~/ffi0.
[/ ~
~#//;
~~
~~
93 .9
~///;
/, ~
~~
93.8
93.7
500
600
700
800
900 10010 1100
1013 /691..57
atmospheric pressure [m bar]
Fig. 3:2. Sound level depending on the Atmosphere pressure.
Sound level
[dB]
± 0.25dB
± 0.35dB
0/50° ± O.SOdB
94.6 +----+---+-----+----+------1
94
93.4 ~----~----~------~----~------+--+
0
10 20 30 40 50
/691.56
ambient temperature [oc]
Fig. 3. 3. Sound pressure level.
9