Data Sheet

MLX90640 32x24 IR array
Datasheet
Page 46 of 60
REVISION 11 – 3 AUGUST 2018
If X
?](MKK
 X
?](MKK
X
?](MKK
  
X
?]q

X
?]qMKK

;r
.d
a0bc



¸
¼NN N
Where:
X
?]qMKK

KK

>p%q(›

>p>>˜˜
%
s

>p¬¸¬¸>p˜˜>>
%
s
º&¥¦§¨©ª'
If X
?]qMKK
 X
?]qMKK
X
?]qMKK
  
Now we can calculate sensitivity correction coefficients for each temperature range:
AFGHI
f]RR
10n«c3


„<X)o!‡
&

'
ˆ†


„¼NN N!‡
&

'
ˆ†
¼
AFGHI
f]RR
10n«c8

AFGHI
f]RR
10n«c|
<X)o!
&
=)
'
¼NN N!
&
 
'
¼NN 
AFGHI
f]RR
10n«cu
‡<X)o!
&
=)
'
ˆ ! ‡<X)o!
&
=)=)
'
ˆ
AFGHI
f]RR
10n«cu
‡¼NN N!
&
 
'
ˆ ! ‡¼NN N!
&
 
'
ˆ
AFGHI
f]RR
10n«cu
¼ NNN
11.2.2.9.1.3. Extended To range calculation
The input parameter for this calculation is the object temperature calculated in 11.2.2.9
If )
P
&
%‹
'
< 0°C we are in range 1 and we will use the parameters (X
?]
, AFGHI
f]RR
10n«c3
and =)×=)
If 0°C < )
P
&
%‹
'
< CT3°C we are in range 2 and we will use the parameters (X
?]%
, AFGHI
f]RR
10n«c8
and =)×=)
If CT3°C < )
P
&
%‹
'
< CT4°C we are in range 3 and we will use the parameters (X
?](
, AFGHI
f]RR
10n«c|
and =) ×=)
If CT4°C < )
P
&
%‹
'
we are in range 4 and we will use the parameters (X
?]q
, AFGHI
f]RR
10n«cu
and =)×=)
)
P
c•210M10n«c
&
%‹
'

Õ
#
Ä}
&
%‹
'
{ÇÈ-šÉÊ/.šË
’
f]i‚
&

'
! AyGHI
Øo••
•I•ÙYÚ
!
‡
<X
?]Û
!&)
P
&

'
 ŠÜ
Ý
'
ˆ

< )
I•
u
¼