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D7 (Cont.)

标准号：AIR1672 标准名称： Practical Methods to Obtain Free-Field Sound Pressure Levels from Acoustical Measurements Over Ground Surfaces

同源图形

PROBABILITY DISTRIBU

EMPIRICAL REFLECTION

ILLUSTRATION OF EFF

COMPARISON OF SPECTR

EXAMPLE OF APPLICATI

EXAMPLE OF SPECTRUM

BOEING ENGINE TEST S

FIGURE B2. BOEING EN

FIGURE B3. SCHEMATIC

MICROPHONE LOCATIONS

G R O U N D A N D P

EFFECT OF E L E V A

Cl P ratt & W h i t

C2 G e o m e t r y o

C3 T y p i c a l Jet

C 4 Spec t r a M e a

C 5 Axial Jet N o i

C 6 S p e c t r a M

C7 Specific N o r m

C 8 C o m p a r i s

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Cont - Edwards Air F
AIR5145
DIRECTORY

Cont - U.S. Air Forc
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SYMBOLS AND MARKINGS
ARP4005B
Selection

(CONT’D) - CRIMP CO
AS50151
Connectors

(CONT’D) - CONNECTO
AS50151
Connectors

(CONT’D) - CONNECTO
AS50151
Connectors

(CONT’D) - CONNECTO
AS50151
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(CONT’D) - CONNECTO
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FIGURE A1 (CONT’D)
AS4970
Human Fact

FIGURE A1 (CONT’D)
AS4970
Human Fact