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5 INTENSITY CALCULATION MODE
Intensity = (Vo x Distance
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
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
(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
• Storage Temperature: -20
Copyright 2000-2006 ACTiSYS Corp
ACTiSYS Confidential Information
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2
) / (Area x Responsivity x R1 )
2
) / ( 1 x 0.6034 x 500)= Vo x 2.983 mW/sr
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Page 7 of 10
ACT-IR9201 User's Manual
Oct.2nd, 2006
Version 1.0
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