News 02/2009

CCS Sensors gain in dynamics, thanks to the « Double Frequency » function.

CCS Prima Confocal Chromatic « Point » sensor.

Leading products of STIL’s CCS "point" sensors range, the CCS Prima sensor now possesses the “Double Frequency” function.

This innovative function allows having the sensor simultaneously work with two different frequencies, in order to optimize, in each point of the analyzed surface, the quality of the measurement.

Of course, the user can transparently activate the function, because, in each point, the sensor only transmits the optimized measurement.

CCS Prima Confocal Chromatic "Point" sensor.

As an example, the profile of a polished metal piece has been analyzed. On the surface of this polished metal piece, microgrooves are engraved.

To measure such a sample, the user was constrained until now to choose one of the two following solutions:

Either to choose a low measuring frequency (picture 1), allowing to correctly measure the slopes of the microgrooves, where the light is reflected toward the optical pen. Nevertheless, the measurement on the “plateaus” is saturated, this entails a loss of accuracy;

Picture 1 : "Altitude" and "Intensity" measurements of a polished metal piece, measuring rate : 100Hz.

Either to choose a measuring frequency high enough to avoid the saturation (picture 2). This time, the slopes can’t be measured because of a lack of reflected intensity.

Picture 2 : "Altitude" and "Intensity" measurements of a polished metal piece, measuring rate : 1kHz.

Thanks to the activation of the “Double Frequency” function (picture 3), it is now possible to analyze this kind of objects with an ideal accuracy on each point of the surface.

Picture 3 : "Altitude" and "Intensity" measurement of a polished metal piece, "Double Frequency" measuring mode.

The very heterogeneous reflectivity of certain materials is not a constraint any more.

The "Double Frequency" function offers the access to complete and precise information, thus allowing the CCS Prima sensors to gain in dynamics.

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