456719099
|
Main parameten |
of acoustic rcYcrbcrcnt chambcr | |
|
Chambcr Volumc |
: 1624 m3 | |
|
Chambcr Dimensions |
: 9 rn x |
11 m X 16.4 m (width X length x hcight) |
|
Main Door Access |
: 7 m x |
16.4 ni (width X height) |
|
Suspcnsion Poinis |
: 9 poinis of 80 kN load capacity | |
|
35 poinis of 15 kN load capacity | ||
|
Max. Crane Load |
: 160 kN | |
|
Clcanlincss |
: Class 100 000 | |
|
Temperaturę Rango |
: 20° ±2°C (during test) | |
|
Centro Froqucncy (Hz) |
Sound Pressure I-evel (dBL) | |
|
31.5 |
136.5 | |
|
63 |
141.5 | |
|
125 |
147.5 | |
|
250 snn |
150.5 IJ7 ^ |
specified octavc band pressure lcvcls |
|
%/W 1000 |
144.5 |
in empty chambcr at 154.5 dBL |
|
2000 |
137.5 | |
|
4000 |
131.5 | |
|
8000 |
125.5 | |
|
Overall Sound Pressure Level Rangę |
: 125 dBL - 154.5 dBL | |
|
Field Homogenity in Test Volume |
: ±2 dBL | |
|
Control Tolerance of Sound Field |
: ±1.5 dBL ovcrall | |
|
Noise Measurement |
: 16 microphoncs | |
|
Data Acquisition |
: 250 accelcrometcrs. and | |
|
50 strain gauges | ||
LEAF Horn room with the 25 Hz (foreground) and 35 Hz (hackground) cuf-off horns
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