Camera modes: The 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 inspecting a continuously moving surface without losing a single line.

Successive object scanning: In "page mode", a Grablink acquires a set of consecutive lines constituting a 2D image. The acquisition starts when the object enters the camera 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 of the Grablink boards defines any ratio between the camera scanning rate and the encoder pulse rate with 1/1000 resolution. Thus, an off-the-shelf encoder can serve several applications. The exposure control feature guarantees a constant sensitivity despite the speed variation.

Simple and reliable LINE-SCAN acquisition with constant lighting sensitivity and line rate

In many applications, a line-scan camera has to be operated at a constant cycling rate in order to maintain a constant sensitivity. The Grablink Avenue and the Grablink Express implement ADR*, a unique downweb resampling feature, yielding a defined aspect ratio irrespective of web speed variations, even without an electronic shutter on the camera.

A built-in rate converter accommodates an off-the-shelf motion encoder to control the line acquisition process, enabling any programmable aspect ratio, including perfect square pixels.

ADR* makes the most of the line-scan camera, as the sensitivity is not impaired by the shuttering.

Download the "About ADR Technology" flyer

Camera modes: Features such as asynchronous reset, exposure control, strobe lighting often required in industrial applications are available on the Grablink series. The synchronous mode is also supported.

Trigger and exposure control: An external signal can be sent to the frame grabber to trigger the acquisition. The Grablink series is capable of consistently controlling the exposure time and the illumination.

Camera tap structure: For any tap structure, a Grablink delivers a re-ordered bitmap image to the PC memory. Tap-reversal is supported. With the multiplex tap technique, several taps are interleaved over Camera Link as long as the combined data rate remains below the pixel clock frequency specified for the board.