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参数资料
| 型号： | S3932 |
| 元件分类： | 光敏二极管 |
| 英文描述： | PHOTO DIODE |
| 封装： | CERAMIC PACKAGE-4 |
| 文件页数： | 3/4页 |
| 文件大小： | 328K |
| 代理商： | S3932 |
One-dimensional PSD
S3979, S3931, S3932, S3270
-6
-4
-2
-5
-3
-1
0
-150
-100
-50
0
+50
+100
+150
+6
+4
+2
+5
+3
+1
POSITION ON PSD (mm)
POSITION
DETECTION
ERROR
(
m
m)
KPSDB0012EB
0
POSITION ON PSD
+20
+100
-100
POSITION
DETECTION
ERROR
(m)
-20
-10
-15
-5
+5
+10 +15
KPSDC0010EA
L
X1
X2
ACTIVE AREA
x
s Conversion formula of spot light position on the PSD
If output signals (photocurrent) I1 and I2 are obtained
from electrodes X1 and X2, then the light spot position
(x) on the PSD can be found by the following formula.
I2 - I1
2x
I1 + I2
L
=
-1.5
-1.0
-0.5
0
-150
-100
-50
0
+50
+100
+150
+1.5
+1.0
+0.5
POSITION ON PSD (mm)
POSITION
DETECTION
ERROR
(
m
m)
KPSDB0010EB
-3
-2
-1
0
-150
-100
-50
0
+50
+100
+150
+3
+2
+1
POSITION ON PSD (mm)
POSITION
DETECTION
ERROR
(
m
m)
KPSDB0011EB
KPSDC0068EA
s Example of position detectability (Ta=25 °C,
λ=900 nm, spot light size: φ0.2 mm)
s Correction for position detection error
Position detection characteristics obtained by the above
formula can be corrected to reduce position detection
errors. For example, the maximum position detection
error (±120
m) of S3931 can be significantly reduced
to ±9
m by using the least square method.
S3979
S3931
S3270
S3932
3
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相关代理商/技术参数 |
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|---|---|
| S393P | 制造商:AUK 制造商全称:AUK corp 功能描述:Dual Voltage Comparator |
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| S39421 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Hot Swap Voltage Controller |
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