Piranha XL CMOS TDI series

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Stemmer Imaging now supplies two new 16k models from the Piranha XL CMOS TDI series of high speed line scan cameras from Teledyne DALSA. These new XDR models are optimised to provide extended dynamic range, better signal-to-noise ratio and improved overall performance in a wide range of lighting conditions.

Used in a variety of applications, including the detection of small defects at high speeds and over a large field of view in LCD and OLED flat panel displays, printed circuit boards, film and large format web materials, the Piranha XL XDR offers true exposure control. Applications where the product speed may vary lead to under or over exposure when exposure times are fixed. Exposure control, however, provides more precise control and consistent exposure however much the speed may vary. Exposure control also allows different exposures on different lines for extended dynamic range.

The Piranha XL XDR offers a 125 kHz maximum line rate at 16k pixel resolution, combining high sensitivity with very low noise through Time Delay Integration (TDI) on-chip summing of 8 or 12 image lines. This delivers extremely high image quality for high-speed applications. The high speed and high resolution brings faster throughput and can also lower system cost since fewer cameras may be needed for any given application. The choice of 8 or 12 rows provides the flexibility to meet a larger number of inspection needs. The improved signal-to-noise ratio ensures better detection of smaller defects in various lighting conditions. The camera’s high responsivity (up to 1,200 DN/njcm2 in 12 bit at 1x gain) gives increased sensitivity in low light conditions thus reducing lighting costs.

The new camera features the field-proven industry-standard CLHS interface for very high speed data transfer over long transmission distances with flexible cabling. This, combined with the Piranha XL XDR’s built-in Trigger to Image Reliability (T2IR) framework, safeguards every bit in the camera’s full 2.0 GB/s data throughput. T2IR provides monitoring, diagnostics, track and trace, and buffers to further improve reliability, which in turn delivers more uptime, more productivity, and lower costs. The T2IR framework also extends across the combination when the camera is paired with Teledyne DALSA’s XTIUM Camera Link HS frame grabber.

Also now available from Stemmer Imaging is the new Xenics Bobcat-320 industrial camera, featuring the latest InGaAs imager to provide a highly competitive solution for high volume markets needing shortwave infrared (SWIR) imaging capabilities.

These applications include hyperspectral imaging in food sorting and waste recycling, in-line quality control, semiconductor defect analysis, laser beam profiling and thermal imaging of hot objects between 300 °C and 800 °C. Using SWIR (900 – 1700 nm) imaging can reveal information (such as subsurface defects) that cannot be observed using conventional cameras.

The Bobcat-320 features a 320 x 256 pixel thermo-electric cooled InGaAs sensor offering low noise and low dark current to ensure high sensitivity. The small form factor and light weight of the camera makes it easy to physically integrate into new and existing industrial processes, including the use of standard protective housings if needed. On-board image processing and user-friendly Xeneth control software makes set up very straightforward. A versatile software development kit is also available and the camera is compatible with a broad range of industry standard software packages for added flexibility, speeding the development of more complex imaging solutions.

Bobcat-320 is available in a basic 100 Hz version for high-volume markets or an advanced 400 Hz version and both can have CameraLink or GigE Vision with Power over Ethernet interfaces. The high-speed 400-Hz CL version features a number of automated camera settings to optimize image quality, while a user-adjustable region of interest speeds up data acquisition. A unique high-frame-rate version featuring gated imaging for use in R&D and specialised dedicated applications has also been developed.

Since SWIR radiation is transmitted by glass, the Bobcat-320 can be equipped with standard C-Mount lenses, meaning that the most cost-effective lenses for the application can be chosen.