A2TPMI Datasheet, PDF (7/21 Pages) PerkinElmer Optoelectronics – Thermopile with integrated signal processing circuit

Optical Characteristics
Radiation Source
Aperture
Relative output signal
100%
FOV at half
energy points
50%
Datasheet A2TPMI ^Ô
The A2TPMI is available with different
standard optical cap assemblies with
and without an infrared lens or mirror.
The optics defines the view angle or
field of view (FOV) of the sensor.
The FOV is defined as the incidence
angle difference, where the sensor
shows 50% relative output signal ac-
cording to the setup shown.
TPMI
Angle of incidence
Figure 1: FOV definition
Rotation
Symbol Parameter
Min Typ
Standard Cap Type (C4)
FOV Field of view
60
OA Optical axis
0
High cap type with internal reflector (C6 IRA)
FOV Field of view
15
OA Optical axis
0
Low cap type (C7)
100
FOV Field of view
125
OA Optical axis
0
Mirror Module (ML / MR / MF)
Field of view
7
Lens Cap Type (L5.5)
FOV Field of view
7
OA Optical axis
0
D:S Distance to spot size ratio
8:1
Max Unit Conditions
70
° 50% rel. output signal
± 10 °
20
° 50% rel. output signal
±2
°
105 ° 50% rel. output signal
135 ° 10% rel. output signal
±10 °
12
° 50% rel. output signal
12
± 3.5
° 50% rel. output signal
°
A2TPMI Datasheet Rev4
Page 7 of 21
Rev. Oct 2003