Category: Euresys

Line-scan triggering capabilities

• The Coaxlink frame grabber controls the camera scanning rate based on the signals received from a motion encoder. When the

parts move faster, the acquisition line rate of the camera increases. When the parts move slower, the acquisition line rate of

the camera decreases.

• The Coaxlink boards interpret A/B signals from quadrature motion encoders to know in which direction (forward or backward)

the part is moving.

• Optionally, the Coaxlink board can be instructed to acquire lines only when the object is moving forward or only when the

object is moving backward.

• A feature called Backward Motion Cancellation stops the acquisition when a backward motion is detected. The line acquisition

automatically resumes when the motion is again in the forward direction, at the exact place where the acquisition was

interrupted.

• A Rate Converter allows the camera to acquire lines at any programmable resolution lower or higher than the resolution of the

motion encoder. This gives the designer incredible freedom and flexibility during the development of the application.

• A Rate Divider allows the camera to acquire lines at a resolution lower than the resolution of the motion encoder. It divides the

frequency of the incoming encoder signal by a programmable integer.

 Line-scan triggering capabilities 1/2

Coaxlink supports continuous web scanning (to inspect infinite, continuously moving surfaces without losing a single line)

and discrete object scanning (to acquire the image of objects moving in front of the camera).

• A trigger is used to start the acquisition when the part is in position. Hardware triggers come from the board’s I/O lines.

Software triggers come from the application.

• After it is started, the acquisition either:– Continues indefinitely (for web inspection applications)

– Continues for a programmable number of lines (to acquire the image of objects of a known length)

– Continues until an end trigger is received (to acquire the image of objects of a variable length)

• An optional trigger delay is available to postpone the beginning of the acquisition for a programmable number of lines.

• A feature called Backward Motion Cancellation stops the acquisition when a backward motion is detected. The line acquisition

automatically resumes when the motion is again in the forward direction, at the exact place where the acquisition was

interrupted.

• A Rate Converter allows the camera to acquire lines at any programmable resolution lower or higher than the resolution of the

motion encoder. This gives the designer incredible freedom and flexibility during the development of the application.

• A Rate Divider allows the camera to acquire lines at a resolution lower than the resolution of the motion encoder. It divides the

frequency of the incoming encoder signal by a programmable integer.

The Coaxlink driver includes the following tools:

Genicam Browser: An application giving access to the GenICam features exposed by the GenTL Producer(s) in the system.

GenTL Console: A command-line tool giving access to the functions and commands exposed by the Euresys GenTL Producer.

Compliant with Genicam

Including support for

GenApi

The Standard Feature Naming Convention (SFNC)

GenTL

Windows and Linux drivers available

Including support for the AArch64 64-bit ARM architecture for Linux

Developed with the support of the DG06 Technology Development Department

General purpose I/O lines

Compatible with a wide range of sensors and motion encoders.

High-speed differential inputs: Quadrature motion encoder support up to 5 MHz.

Isolated current-sense inputs: 5V, 12V, 24V signaling voltages accepted, up to 50 kHz, individual galvanic isolation up to

500VAC RMS.

Isolated contact outputs.

High-speed 5V-compliant TTL inputs/ LVTTL outputs.

High-performance DMA (Direct Memory Access)

Direct transfer into user-allocated memory

Hardware scatter-gather support

64-bit addressing capability

Area-scan triggering capabilities

A trigger is used to start the acquisition when the part is in position. Hardware triggers come from the Coaxlink’s I/O lines.

Software triggers come from the application.

An optional trigger delay is available to postpone the acquisition for a programmable time.

A trigger decimation function allows to skip some of the triggers.

Camera exposure control allows the application to control the exposure time of the camera.

When the acquisition starts, at the appropriate timing, the Coaxlink board generates a signal to control an illumination device

connected to one of its output lines.

Benefits

Laser line extraction with zero host CPU usage

The Coaxlink’s on-board FPGA measures the position of the laser line during the image acquisition without loading the

host CPU.

Real-time generation of 16-bit 3D height maps

The Coaxlink directly transfers the computed 3D height map to the host PC memory without delay, in real-time.

Acquire images from the fastest and highest resolution cameras

Highest data acquisition rate in the industry

25 Gbit/s (2.500 MB/s) bandwidth from camera to host PC memory

Long cable support

40 meters at CXP-6 speed (6.25 Gbps)

100 meters at CXP-3 speed (3 Gbps)

Use standard coaxial cables

A single inexpensive cable for data transfer, camera control, trigger and power supply

Top reliability and flexibility, performs in the harshest environments

Robust connectors

Coaxlink uses DIN 1.0/2.3 connectors with push/pull latching system for reliable connections

Memento Event Logging Tool

Memento is an advanced development and debugging tool available for Coaxlink cards.

Memento records an accurate log of all the events related to the camera, the frame grabber and its driver as well as the application.

It provides the developer with a precise timeline of time-stamped events, along with context information.

It provides valuable assistance during application development and debugging, as well as during machine operation.

At a Glance

Laser line extraction with zero host CPU usage

Real-time generation of 16-bit 3D height maps

Choice of algorithms: Maximum, Peak, Center of Gravity (COG)

Precision: up to 1/256 pixel (with Peak and COG algorithms)

Performance: 19.000 profiles/s from 1024 x 128 images. 38.000 profiles/s from

1024 x 64 images

Benefits

Laser line extraction with zero host CPU usage

The Coaxlink’s on-board FPGA measures the position of the laser line during the image acquisition without loading the

host CPU.

Real-time generation of 16-bit 3D height maps

The Coaxlink directly transfers the computed 3D height map to the host PC memory without delay, in real-time.

Acquire images from the fastest and highest resolution cameras

Highest data acquisition rate in the industry

25 Gbit/s (2.500 MB/s) bandwidth from camera to host PC memory

Applications

 Machine Vision for the Electronic Manufacturing Industry

• High speed image acquisition for AOI, 3D SPI, 3D lead/ball inspection machines.

• Very high resolution line-scan image acquisition for Flat Panel Display inspection and solar cell inspection

 Machine Vision for the General Manufacturing Industries

• High frame rate image acquisition for inspection machines

• Line-scan image acquisition for surface inspection machines

• Line-scan image acquisition for textile inspection

• Image acquisition for robots

 Machine Vision for the Printing Industry

• High speed line-scan image acquisition for printing inspection machines

Video Acquisition and Recording

• High-frame-rate video acquisition for motion analysis and recording

 Flexible line-scan camera operation with the rate converter

• The rate converter is a smart, programmable frequency multiplier/divider.

• Used with motion encoders and line-scan cameras, it allows the user to choose the aspect ratio of the pixels in the image.

• It provides a way to calibrate the acquisition chain to easily reach square (1:1 aspect ratio) pixels.

 C2C-Link camera synchronization

Allows to accurately synchronize multiple area-scan or line-scan cameras connected

• to the same card

• to different cards in the same PC

• to different cards in different PCs

 Compatible with eGrabber

• eGrabber Studio: eGrabber’s new interactive evaluation and demonstration application

• GenICam Browser: An application giving access to the GenICam features exposed by the GenTL Producer(s)

• GenTL Console: A command-line tool giving access to the functions and commands exposed by the Euresys GenTL Producer

 Compliant with GenICam 

Including support for

• GenApi

• The Standard Feature Naming Convention (SFNC)

• GenTL

Windows, Linux and macOS drivers available

• Including support for Intel 64-bit platforms as well as ARM 64-bit platforms

Line-scan triggering capabilities

• The Coaxlink frame grabber controls the camera scanning rate based on the signals received from a motion encoder. When the

parts move faster, the acquisition line rate of the camera increases. When the parts move slower, the acquisition line rate of

the camera decreases.

• The Coaxlink boards interpret A/B signals from quadrature motion encoders to know in which direction (forward or backward)

the part is moving.

• Optionally, the Coaxlink board can be instructed to acquire lines only when the object is moving forward or only when the

object is moving backward.

• A feature called Backward Motion Cancellation stops the acquisition when a backward motion is detected. The line acquisition

automatically resumes when the motion is again in the forward direction, at the exact place where the acquisition was

interrupted.

• A Rate Converter allows the camera to acquire lines at any programmable resolution lower or higher than the resolution of the

motion encoder. This gives the designer incredible freedom and flexibility during the development of the application.

• A Rate Divider allows the camera to acquire lines at a resolution lower than the resolution of the motion encoder. It divides the

frequency of the incoming encoder signal by a programmable integer.

Line-scan triggering capabilities

Coaxlink supports continuous web scanning (to inspect infinite, continuously moving surfaces without losing a single line)

and discrete object scanning (to acquire the image of objects moving in front of the camera).

• A trigger is used to start the acquisition when the part is in position. Hardware triggers come from the board’s I/O lines.

Software triggers come from the application.

• After it is started, the acquisition either:– Continues indefinitely (for web inspection applications)

– Continues for a programmable number of lines (to acquire the image of objects of a known length)

– Continues until an end trigger is received (to acquire the image of objects of a variable length)

• An optional trigger delay is available to postpone the beginning of the acquisition for a programmable number of lines.