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Multipix introduces Basler A406k camera

A Multipix Imaging product story
Edited by the Engineeringtalk editorial team Mar 2, 2009

Multipix Imaging has launched the Basler A406k camera, providing 209fps at the full resolution of 2320 x 1726 pixels.

It is available in both monochrome and colour and extends the portfolio of the Basler A400k series.

Multipix Imaging is launching the Basler A406k camera providing 209 fps at the full resolution of 2320x1726 pixels.

Multipix Imaging is launching the Basler A406k camera providing 209 fps at the full resolution of 2320x1726 pixels.

The camera series, which includes the A402k (24fps), the A403k (48fps) and the A404k (96fps), is used in automated optical inspection systems to verify the position and soldering quality of devices on populated, soldered PCBs.

When the camera is used with the supplied area-of-interest (AOI) list editor, it is said to be possible to change the size, position and exposure time of a series of AOIs very quickly.

This is a significant advantage because the camera link serial communications channel normally used to change camera parameters is limited to 115k baud and would be too slow to make these rapid changes to the AOI.

This is especially true given the high frame rate of the A406k.

To achieve such high frame rates, the A400 family uses a complementary metal oxide semiconductor (CMOS) sensor with a rolling shutter.

With the help of a flash window that provides an output signal when all of the lines in the sensor are ready for exposure, a global shutter is simulated.

The A400k is calibrated and corrected to achieve high image quality.

One correction takes care of any deviations in the camera's 2352 analogue-to-digital converters (ADCs).

The fixed-pattern noise (FPN) that is typical for a CMOS sensor is also corrected, as is the photo response non-uniformity (PRNU).

The combined result is an image very close to charge-coupled device (CCD) quality, even in a 10 bit mode.

The data reading out of the sensor results in up to a 2.4Gb-per-second data stream inside of the camera, which equates to nearly four full CDs of data per second.

It is claimed that the A406k can provide 209 frames per second at full resolution.

This rate is possible via a 10-tap 85MHz camera link configuration, transferring approximately 800Mb of data per second.

This bandwidth limits the A406k to a maximum data depth of 8 bits.

PCI Express-based frame grabbers with eight lanes (PCIe x8) are used to handle this large data volume in the PC.

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