Highlights
-- Test & Measurement World, 6/1/2009 2:00:00 AM
System combines 3-D measurement with 2-D AOI
In addition to offering full 2-D AOI (automated optical inspection), the Zenith system from Koh Young Technology leverages 3-D inspection technology to sense and measure the z-axis profilometry of entire printed-circuit board surfaces, including electronic components, solder joints, patterns, holes, and even components with foreign materials on them. Koh Young says that unlike conventional 2-D AOI systems, the Zenith has no problem measuring dark components, lifted leads, or mislocated devices. www.kohyoung.com.
Area-scan camera family adds color models
Joining Dalsa’s Falcon family of area-scan cameras are two color models that can deliver a 4-Mpixel resolution at rates of up to 60 fps. The Falcon 4M30 and 4M60 cameras also incorporate a global shutter, which eliminates such imaging issues as smearing and time-displacement artifacts.
Both the 4M30 and 4M60 provide individual color gain and offset to allow for white balancing of the image. They are programmable through a Camera Link interface and can transmit data at up to 320 MHz over distances of up to 10 m. Other features include vertical windowing, flat-field correction, exposure control, and adjustable integration time and frame rate. www.dalsa.com.
Line-scan system acquires 45,000 lines/s
The In-Sight 5604 vision system from Cognex is a high-speed line-scan imager that eliminates the need for separate PC-based software and a line-scan camera head. The self-contained unit can acquire 45,000 lines/s, which translates into 22 fps for full-sized images. It creates images with a resolution of 2 Mpixels using a 1024-pixel-wide imager and up to 2048 lines. The In-Sight 5604 employs a 1-GHz digital signal processor and includes a 10/100BaseT Ethernet port to provide connectivity to the automation control system. www.cognex.com.
AIA updates GigE Vision standard
The AIA (Automated Imaging Association) has released an updated version of the GigE Vision camera interface standard and has made the new version available in both English and Japanese. The AIA says that in addition to providing clarifications and improved documentation, Version 1.1 includes new pixel formats and Bayer format support, improved error handling, support for multiple versions of the European Machine Vision Association’s GenICam programming interface, and new commands that allow action commands to be sent to multiple devices simultaneously.
In a prepared statement, Eric Carey, chair of the GigE Vision standard committee, said, “This is the first revision of the specification since it was introduced. While not introducing new camera features...the subtle changes allow developers and camera manufacturers to better control internal processes, thus allowing for more full-feature camera options.”
The GigE Vision camera interface is based on the Gigabit Ethernet communications protocol. It permits data to be transferred at 1000 Mbps over cable lengths of up to 100 m. The GigE Vision standard committee is already preparing for incorporation of 10GigE as it becomes the mainstream protocol. www.machinevisiononline.org.
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