176
FPS_max = 1
-----------------------------------------------------------------------------------
10 us + ((100
*
64 us) + ((510 - 100)
*
4.85 us) + 3.15 us) + 65 us + 64 us + 64 us
= 0.0001266704667806700868 1 / us
= 126.7
Note
The calculator returns the max. frame rate supported by the sensor. Please keep in mind that it will
depend on the interface and the used image format if this frame rate can be transferred.
See also
To find out how to achieve any defined freq. below or equal to the achievable max. freq., please have a look
at Achieve a defined image frequency (HRTC) (p. 164).
1.19.1.1.4 Reprogramming CCD Timing
Reprogramming the CCD Controller will happen when the following changes occur
• Changing the exposure time
• Changing the capture window
• Changing Trigger Modes
Reprogram time consists of two phases
1. Time needed to send data to the CCD controller depending on what is changed
exposure : abt 2..3ms
window: abt 4..6ms
trigger mode: from 5..90ms,
varies with oldmode/newmode combination
2. Time to initialize (erase) the CCD chip after reprogramming this is fixed, abt 4.5 ms
So for example when reprogramming the capture window you will need (average values)
t
regprog
= change_window + init_ccd
t
regprog
= 5ms + 4.5ms
t
regprog
= 9.5ms
1.19.1.1.5 CCD Sensor Data
Device Structure
• Interline CCD image sensor
• Image size: Diagonal 4.5mm (Type 1/4)
• Number of effective pixels: 659 (H) x 494 (V) approx. 330K pixels
• Total number of pixels: 692 (H) x 504 (V) approx. 350K pixels
• Chip size: 4.60mm (H) x 3.97mm (V)
• Unit cell size: 5.6um (H) x 5.6um (V)
• Optical black:
– Horizontal (H) direction: Front 2 pixels, rear 31 pixels
– Vertical (V) direction: Front 8 pixels, rear 2 pixels
• Number of dummy bits: Horizontal 16 Vertical 5
• Substrate material: Silicon
MATRIX VISION GmbH
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