General
The EureCard GrabLink Expert is a
highperformance 64-bit, 66MHz PCI bus board capable of acquiring
images in 2-Base or one Medium configuration. The GrabLink
Expert is a high-speed PCI frame grabbers for line- or area-scan
Digital Camera Links.
State-of-the-art cameras are easily connected with off-the-shelf
Camera Link compliant cables. The GrabLink Expert is ideal
for industrial applications such as inspection of high-speed
moving objects, web inspection or high-resolution acquisition.
Configuration Supports
GrabLink Expert is a Camera Link
compatible frame grabber fitted with two Camera Link connectors.
It's capable of acquiring images simultaneously or independently
from two linescan or area-scan digital cameras in a dual Base
configuration. GrabLink Expert also supports one camera in
a Medium configuration. It supports various types of cameras:
Number
of
camera |
Mono.
single-tap |
Mono.
dual-tap |
RGB
triple-tap |
Mono.
quad-tap |
Mono.
octal-tap |
Base |
Two
8 - 16bits |
Two
8 - 12bits |
Two
8bits |
. |
. |
Extend
Base * |
. |
. |
. |
Two
8 - 12bits |
. |
Medium |
. |
. |
One
10-12bits |
One
8-12bits |
. |
Extend
Medium |
. |
. |
. |
. |
One
8-12bits |
*
Multiplex tap. Preliminary feature |
|
Line-scan
Systems
Camera Modes: The
EureCard GrabLink series interfaces to state-of-the-art Camera
Link line-scan cameras with line-rate and exposure
control. Free running cameras are
supported as well.
Continuous
Web Scanning: The
"web mode" allows inspection of a continuously moving
surface without losing any lines
Successive Object Scanning: In
"page mode", GrabLink acquires a set of consecutive
lines constituting a 2D image. The acquisition starts when
the object enters the cameras field of view, as signaled by
an external trigger.
Motion
Encoder: When
the observed web or object moves at a variable speed, the
frame grabber imposes a camera scanning rate derived from
a motion encoder. This guarantees a fixed pixel aspect ratio.
Perfect square pixels are achievable. A built-in rate converter
can define any ratio between the camera scanning rate and
the encoder pulse rate with a 1/1000 resolution. Thus, an
off-theshelf encoder can be used to serve several applications.
The exposure control feature guarantees a constant sensitivity
despite the speed variation.
Serial
Control of Cameras
The GrabLink Expert supports two Camera Link pseudo RS-232
serial lines. The application software can use the Camera
Links API functions to control the camera. Alternatively,
the serial lines can be configured as additional PC COM ports
ensuring interoperability with existing camera control software. |
|
I/O
Board
GrabLink Expert is delivered with an auxiliary I/O board implementing
the trigger and strobe facilities. The bracket is fitted with
two connectors. On the female DB9 connector, system components
(such as a motion encoder) benefit from isolated I/O lines
and power supply. TTL trigger and strobe lines are available
on the female DB25 together with 16 fully programmable general-purpose
I/O lines.
The
MultiCam driver enables control of several Domino and GrabLink
frame grabbers simultaneously, using an arbitrary number of
cameras. MultiCam allows defined channel linking cameras to
be buffered into the PC memory. The MultiCam channel identifies
all parameters ruling the acquisition process for a camera.
All camera features, such as resolution and control means,
are reported through simple parameters. The MultiCam driver
runs under Windows 98SE/ME/NT/2000/XP..
GrabLink Expert
Image acquisition
from digital Camera
Link camera
|
