B&K 2250 Light Manual do Utilizador Página 29

  • Descarregar
  • Adicionar aos meus manuais
  • Imprimir
  • Página
    / 122
  • Índice
  • MARCADORES
  • Avaliado. / 5. Com base em avaliações de clientes
Vista de página 28
Hand-held Analyzer Type 2250
Instruction Manual
24
Fig.4.8 Free-field frequency response of Hand-held Analyzer Type 2250 (including Microphone Type 4189),
Windscreen UA 1650 fitted and sound field at 0
°
angle of incidence to the microphone. Sound Field
Correction parameter set to ‘Free-field’ and the Windscreen Correction parameter set to ‘Auto Detect’ or
‘UA 1650’, see Table A.5.
Fig.4.9 Free-field frequency response of Microphone Type 4189, with sound field at 0
°
angle of incidence to the
microphone and Outdoor Microphone Kit UA 1404 fitted. Sound Field Correction parameter set to ‘Free-
field’ and the Windscreen Correction parameter set to ‘UA1404’. See Table A.6. Reduced IEC 61672–1
limits are also drawn on the graph.
4.6.5 Diffuse-field Frequency Responses
The Diffuse-field frequency responses (also called random-incidence frequency responses) with Z-
frequency-weighting are provided in Fig.4.10 to Fig.4.12.
-4
-2
0
2
4
dB
100 1000 10000
Hz
040168
-4
-2
0
2
4
dB
100 1000 10000
Hz
040170
BE171211.book Page 24 Thursday, May 27, 2004 1:01 PM
Vista de página 28
1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 121 122

Comentários a estes Manuais

Sem comentários