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第一章 光电检测技术基础 PowerPoint PPT Presentation


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第一章 光电检测技术基础. 本章的主要内容. 2.1 检测量的误差及数据处理 2.2 辐射度量与光度量基础 2.3 光电检测器件的特性参量. 2.1.1 检测过程及误差分类 2.1.2 随机误差 2.1.3 系统误差. 2.1 检测量的误差及数据处理. 本节主要包括以下几部分内容:. 1 、 检测过程及标准. 2.1.1 检测过程及误差分类. 由检测过程可知,必须有已知量作为比较或参考的标难,才能进行检测工作。比较标准通常有以下三类:. ( 1 ) 真值. 真值是指某物理量的理论值或定义值。. ( 2 ) 指定值.

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第一章 光电检测技术基础

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7064338


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2.1

2.2

2.3


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2.1.1

2.1.2

2.1.3

2.1


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1

2.1.1

1

2

3 A


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2

A0x

2-1

x

2-2

xA0=x


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1

xxA0

xmax


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2

3

A0(2-2)xxx


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2.1.2

1

xNx1x2xnxNP(x)

2-3

xx

2-4


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x

2-5

< >

2-6

2-7


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0P(x)P()2-lx(a,b)

2-8

2-9

2-1


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2-2


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2

Nx1x2xnxN

2-15

( )


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N N ,

2-16


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2-17

Ns N1sNsNN504~20


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3

Nxn vn Nvn

2-18


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2N-1NN-1Nvn(2-17)

2-19


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<v>=0

2-20

2-21

(2-7)(2-6)


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(2-20)N

2-22


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70.8420.8450.8410.8380.8440.8420.839

:

:


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(1) 84.16%0.00095

(2) 84.16

84.1570.2568.2%

2 84.1570.5095.4%

3 84.1570.7599.7%

(3)0.067%


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JD

2-23

k2~3

2-24


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4

yx1x2xn yf(x1x2xn)x1x2xn

2-25

2-26


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(1) ykxk

2-27

2-28

(2)

2-29

2-30


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(3)

2-31

2-32

(4)

2-33

2-34


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5

xxnn

2-35


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6

(1)

(2)

(3)


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(1) 3

NN

(2)

NNPMNa

2-36

2-37


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Nxn(2-39)(2-40)avnxn

MM

2-38

2-39

aa

2-40

a=k


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2-1


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(1) N10

(2) N1853N1853N1853

(3)


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1

2.1.3

(1)

(2)

(3)

(4)


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2

(1)

2-3


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2-4


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(2)

xN(Nx)xN (Nx)

2-5

U0=UUx


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(3)

2-46


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(4)

RN+ RxR1R3R2RxRNRNRNR1R3R2RxRNRN

2-52

2-54


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(5)

R1R21RNRxRNR3

2-55

RNRxRNRN

2-56


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RNRNR1R2R2R11RxRNRNRNRNR1R21+1(2-55)(2-56)

2-57

R1R2


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2-58

2-59

2-60


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3

1

2-61

2-62


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2

N

x1x2xnxN

n0N12nNN

x1x2xnxN

2-63

N

2-64


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[I1]

3

0

2-65

n

2-66

xnn


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2.2

2.2.1

2.2.2

2.2.3


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d

ds

d

r

o

d

2.2.1

dSr

dd(sr)


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(Q)(J

(w)

(,P):


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I

(L)


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(M)

(E


2 2 2

2.2.2

2-3


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Ve

V()CIE()

2-8


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lm/W


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2.2.3

1.

()


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y

dA

r

dS

x

z

2-9

2.

2-9dA

dSLdA

P


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(=1)(1-)M=E


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2.3


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(1) ()(h=hc/)

(2) P-N-P-N

(3) :()


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2 3 1

2.3.1

R


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:

Eg

EA


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2-5 Egmax


2 3 2

2.3.2

1.

1

(Poisson)

(A)q(K) A, (1/s)R(f)


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2-(G-R)

G-RP-NG-R

EpAd G


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3

()

kT(K)R


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41/f

1/f

2-13


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5

SNR


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NEP

1

NEPNEPD

D*


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