S.p.l test circuit sensitivity test circuit, Anechoic room, 6anechoic room – BeStar BPU1458IFAH09 User Manual
Page 6: U.s 30cm, Voltmeter, Bestar electronics industry co.,ltd, F.c osc sp, U.s s.c.m s.c.m
U.S
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Voltmeter
DRG NO: BS/TEU01.306A
BESTAR ELECTRONICS INDUSTRY CO.,LTD
A
2010.12.15
A
6
Rev.
Date
C
B
Anechoic Room
Drawn by:
Checked by:
Date:
OSC. :Oscillator
F.C :Frequency Counter
U.S :Ultrasonic Sensor
S.C.M :Standard Cappacitor Microphone
Amp. :Ampifier
SP :Tweeter
RL
: 3.9KΩ
Approved by:
倪雪晴
Drawn
5
4
Note
F.C
3
RL
C
B
A
Ultrasonic Sensor
BPU1458IFAH09
2
1
Page:6 of 10
Amp
～
BPU1458IFAH09
E
F
D
H
G
6
Anechoic Room
OSC. :Oscillator
F.C :Frequency Counter
U.S :Ultrasonic Sensor
S.C.M :Standard Cappacitor Microphone
Amp. :Ampifier
S.P.L test circuit
sensitivity test circuit
F.C
OSC
SP
5
OSC
4
U.S
S.C.M
S.C.M
3
Amp
H
E
F
G
D
Voltmeter
2
1
Acous tics & Sensor
2010.12.15
倪雪晴
邹皓轩
李红元