Balluff MATRIX VISION mvBlueFOX Series, Техническое руководство, Страница: 195 / 238

1.19 Appendix A. Specific Camera / Sensor Data 187
1.19.1.3.5.3 Gray scale version
1.19.1.3.6 CCD Signal Processing
The CCD signal is processed with an analog front-end and digitized by an 12 bit analog-to-digital converter
(ADC). The analog front-end contains a programmable gain amplifier which is variable from 0db (gain=0) to 30dB
(gain=255).
The 8 most significant bits of the ADC are captured to the frame buffer. This will give the following transfer function
(based on the 8 bit digital code): Digital_code [lsb] = ccd_signal[V]
∗
256[lsb/V]
∗
exp(gain[bB]/20) lsb : least
significant bit (smallest digital code change)
Device Feature And Property List (p. 187 )
1.19.1.3.7 Device Feature And Property List
• mvBlueFOX-221G Features (p. 187 )
• mvBlueFOX-221C Features (p. 187 )
1.19.1.3.7.1 mvBlueFOX-221G Features
1.19.1.3.7.2 mvBlueFOX-221C Features
1.19.1.4 mvBlueFOX-[Model]223 (1.4 Mpix [1360 x 1024])
1.19.1.4.1 Introduction
The CCD sensor is a highly programmable imaging module which will, for example, enable the following type of
applications
Industrial applications:
• triggered image acquisition with precise control of image exposure start by hardware trigger input.
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