Sensitivity test circuit s.p.l test circuit, Anechoic room, Voltmeter – BeStar BPU1440IFAH09-01 User Manual

Page 6: S.c.m, S.c.m u.s, Sp osc f.c, 30cm, Bestar electronics industry co.,ltd voltmeter, 30cm u.s

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background image

1

2

Voltmeter

D

G

F

E

H

Amp

3

S.C.M

S.C.M

U.S

4

OSC

5

SP

OSC

F.C

sensitivity test circuit

S.P.L test circuit

OSC. :Oscillator
F.C :Frequency Counter
U.S :Ultrasonic Sensor
S.C.M :Standard Cappacitor Microphone

Amp. :Ampifier

Anechoic Room

30cm

6

G

H

D

F

E

BPU1440IFAH09-01

Amp

Page:6 of 10

1

2

BPU1440IFAH09-01

Ultrasonic Sensor

A

B

C

RL

3

www.be-star.com [email protected]

李红元

邹皓轩

F.C

Note

4

5

Drawn

Approved by:

OSC. :Oscillator
F.C :Frequency Counter
U.S :Ultrasonic Sensor
S.C.M :Standard Cappacitor Microphone

Amp. :Ampifier

SP :Tweeter
RL

: 3.9KΩ

Date:

Checked by:

Drawn by:

Anechoic Room

B

C

Date

Rev.

6

A

BESTAR ELECTRONICS INDUSTRY CO.,LTD

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30cm

U.S

DRG NO: BS/TEU01.307

倪雪晴

倪雪晴

2011.03.10

2011.03.10

Acous tics & Sensor

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