anechoic room - fraunhofer · norms din en iso 3745, din en 60268-5 specifications anechoic room...

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1 Flachlautsprecher Anechoic Room Measured Quantities Sound pressure, sound power (enveloping surface method), sound intensity, directional characteristics, localization of sound sources, balloon data Measured Objects Machines, motors, loudspeaker and microphones, e.g. in consumer electronic devices, as well as other sound and noise sources Norms DIN EN ISO 3745, DIN EN 60268-5 Specifications Anechoic room class 1 according to ISO 3745 Annex A Frequency range: 63 Hz to 20.000 Hz Clear dimensions (L x W x H): 9,4 m x 4,93 m x 6,9 m Volume (total): 646 m 3 Door dimensions (clear): (W x H): 2,3 m x 2,46 m Room-in-Room design, elastic suspension Equipment Floor net, load-bearing capacity: 150 kg/m 2 or max. 1500 kg Power supply: 230 V, 400 V Mountable grating as working plane, load-bearing capacity: 250 kg/m 2 Low noise air conditioning Duct for measurement and supply lines Mounting points on walls and ceiling (tensile force per point ca. 1 kN) Turntable device (2 axes), load-bearing capacity 100 kg Video monitoring by CCTV Monitoring of temperature and humidity

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Page 1: Anechoic Room - Fraunhofer · Norms DIN EN ISO 3745, DIN EN 60268-5 Specifications Anechoic room class 1 according to ISO 3745 Annex A Frequency range: 63 Hz to 20.000 Hz Clear dimensions

1

Flachlautsprecher

Anechoic RoomMeasured Quantities Sound pressure, sound power (enveloping surface method), sound intensity,

directional characteristics, localization of sound sources, balloon data

Measured Objects Machines, motors, loudspeaker and microphones, e.g. in consumer electronic devices,

as well as other sound and noise sources

Norms DIN EN ISO 3745, DIN EN 60268-5

Specifications Anechoic room class 1 according to ISO 3745 Annex A

Frequency range: 63 Hz to 20.000 Hz

Clear dimensions (L x W x H): 9,4 m x 4,93 m x 6,9 m

Volume (total): 646 m3

Door dimensions (clear): (W x H): 2,3 m x 2,46 m

Room-in-Room design, elastic suspension

Equipment Floor net, load-bearing capacity: 150 kg/m2 or max. 1500 kg

Power supply: 230 V, 400 V

Mountable grating as working plane, load-bearing capacity: 250 kg/m2

Low noise air conditioning

Duct for measurement and supply lines

Mounting points on walls and ceiling (tensile force per point ca. 1 kN)

Turntable device (2 axes), load-bearing capacity 100 kg

Video monitoring by CCTV

Monitoring of temperature and humidity

Page 2: Anechoic Room - Fraunhofer · Norms DIN EN ISO 3745, DIN EN 60268-5 Specifications Anechoic room class 1 according to ISO 3745 Annex A Frequency range: 63 Hz to 20.000 Hz Clear dimensions

2,00

2,46

±0,00

+4,74

-2,21

-0,19

2

3

7

5 6

8

9

4

0,40 0,20

RAR-Betriebsraum

4,93

9,40

2,30

2,00

2,00

1

2

3

4

1 Duct 6 Floor net

2 Absorber wedges 7 Mountable pipes with flange

3 Door 8 Connection for pipes

4 Removable turntable device 9 Elastomer layer

5 Mesh floor grating

Anechoic Room, horizontal projection

Anechoic Room, vertical projection

operating room