Colour sensor matches human perceptions

A high-speed USB-connected perceptive colour sensor with a spectral sensitivity which models that of the human eye is designed for high-speed industrial control and measurement applications

The PCS-II is a high-speed USB-connected perceptive colour sensor with a spectral sensitivity which models that of the human eye, designed for high-speed industrial control and measurement applications (with datarates up the the kilohertz range).

The PCS-II offers fast, true-to-perception industrial colour recognition for up to 255 user-defined colours, previously unavailable.

The PCS-II's operational modes include colour control, colour recognition, colour classification and colour measurement.

Illumination is provided by a white LED with adjustable brightness.

Relative accuracy (according to a sampled reference colour) is better than DE=0.5.

The PCS-II implements the CIE1931 standard distribution function (human eye response curve) and "sees" colours and colour variations just like humans.

The PCS-II's integrated photodetector uses filter curves that correspond to visual responses.

Internal RGB signals are processed in the sensor's controller, mimicking human colour perception.

Inaccurate colour results from conventional RGB sensors are thus eliminated (normal RGB- sensors "see" colours differently from humans due to their simplistic colour signal processing).

Results from simple colour sensors (eg good/bad) are significantly different from human responses.

This could mean errors and higher costs in automation applications for colour recognition - eg quality control.

Product manufacturers will be pleased that, at last, PCS-II provides a way to accurately simulate the "visual impression" of the human eye in high-speed industrial colour control.

Additionally, the PCS-II's special functions like colour grouping, ambient light suppression for luminous objects or master-slave operation allow applications that have been problematic until now - there is no other sensor that reaches the performance of the PCS-II.

Applications for the PCS-II include colour sensing emitted light from LEDs, LCD displays and other displays and monitors, as well as sensing reflected light from paint, print, textiles and plastics.

Other applications include colour sorting or control in chemical, cosmetics, pharmaceutical, packaging and food manufacturing.

Made in Germany by Silicann Technologies, the PCS-II is available now from stock at $1299.00 each (includes cables and fibre-optics) from US distributor Saelig.

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