The Wireless Connectivity Expert
ACT-IR9201 User’s Manual
ACTiSYS Confidential Information
Page 7 of 10
Oct.2nd, 2006
Version 1.0
5 INTENSITY CALCULATION MODE
Intensity = (Vo x Distance
2
) / (Area x Responsivity x R1
)
Vo (volt) = VH - VL (based on the waveform displayed on oscilloscope)
Distance (cm) = The distance between Photodiode and DUT(Device Under Test)= 30cm
Area (cm) = The area of Photodiode = about 1cm
2
Responsivity (A/W) = 0.6034 A/W (the average responsivity over 850 through 900 nm)
R1 = 500 ohms
So Intensity can be expressed as :
Intensity = ( Vo x 30
2
) / ( 1 x 0.6034 x 500)= Vo x 2.983 mW/sr
(Because the Area, Responsivity and R1 are all fixed values, the constant 2.983 will
only be changed when distance has been changed from 30cm.
)
6 SPECIFICATION
•
Product Name:
ACT-IR9201 OVC BOX
•
Dimension:
130mm(L) x 130mm(W) x 30.5mm(H), 5.12"(L) x 5.12"(W) x 1.20"(H)
•
Weight:
291 g (7.7 oz. )
•
Operating Temperature:
0
o
to
60
o
C
•
Storage Temperature:
-20
o
to 85
o
C
Copyright 2000-2006 ACTiSYS Corp
