S.p.l test circuit, Test circuit, Direcivity in overall sensitivity – BeStar BPU1448IFAH09 User Manual

Page 5: Anechoic room, Bestar electronics industry co.,ltd, Att e nu a ti o n (db), Osc f.c s.c.m, Voltmeter amp 90 ° 60, Ultrasonic sensor

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www.be-star.com [email protected]

OSC. :Oscillator

F.C :Frequency Counter
U.S :Ultrasonic Sensor

S.C.M :Standard Cappacitor Microphone

Amp. :Ampifier

Rev.

A

A

B

Drawn by:

BESTAR ELECTRONICS INDUSTRY CO.,LTD

耿 亚

2009.03.11

Drawn

Date

6

5

Note

Approved by:

Checked by:

4

Date:

DRG NO: BS/TEU01.303B

3

2

30

°

Direcivity in Overall Sensitivity

S.P.L test circuit

-15

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(dB)

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OSC

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S.C.M

Anechoic Room

90

°

BPU1448IFAH09

G

H

60

°

5

6

-5

-10

0

°

30

°

4

Voltmeter

Amp

90

°

60

°

2

3

Vertical

C

BPU1448IFAH09

Ultrasonic Sensor

A

Page:5 of 10

1

B

D

F

E

1

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Horizontal

Acous tics & Sensor

2010.12.15

B

倪雪晴

2010.12.15

李红元

邹皓轩

倪雪晴

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