What is the measuring principle of confocalDT?

The confocal chromatic measuring principle Polychromatic white light is focused onto the target surface by a multi-lens optical system. The lenses are arranged so that the white light is dispersed into monochromatic wavelengths by controlled chromatic aberration. To each wavelength, a specific distance is assigned by factory calibration. Only the wavelength which is exactly focused on the target is used for the measurement. An optical arrangement images the light reflected onto a light sensitive sensor element, on which the corresponding spectral color is detected and evaluated. In the case of multi-peak measurements, several distance points are evaluated accordingly.

Extremely large tilt angle	Dynamic measurement tasks	Ready for vacuum


Tilt angle up to 48°	Highest measuring rate in the world	Sensor designed from passive components
Stable signals with curved & structured surfaces	Dynamic exposure control for highest measurement accuracy	Vacuum-suitable sensors, cables and accessories

Smallest light spot	Ultra-small sensors	Thickness calibration



Highlateral resolution Detection of smallest details (e.g. IC pins on PCBs)	Sensors with a diameter from 4 mm for restricted installation space 90° models reduce the installation depth again	Highest measurement accuracy due to stored target materials (refraction index)

Multi-layer thickness measurement

Signal with thickness measurement

Signal with multi-layer thickness measurements (max. 6 peaks)

Thickness measurement of transparent materials in the micron range
Measuring up to 5 layers with just one sensor

Easy configuration via web interface

Sensor type		Measuring range	Measuring direction	Measuring mode
confocalDT IFS2402	Confocal chromatic miniature sensors of ø4 mm	1.5 mm ... 3.5 mm		Distance measurement
confocalDT IFS2403	Confocal chromatic hybrid sensors of ø8 mm	0.4 mm ... 10 mm		Distance measurement Thickness measurement
confocalDT IFS2404	Confocal chromatic sensors of ø12 mm	2 mm		Distance measurement Thickness measurement
confocalDT IFS2405	Precise confocal sensors of ø27 -64 mm	0.3 mm ... 30 mm		Distance measurement Thickness measurement
confocalDT IFS2406	Confocal chromatic sensors for displacement and thickness measurements of ø20 27 mm	205 mm ... 10 mm		Distance measurement Thickness measurement
confocalDT IFS2407	High precision sensors for displacement and thickness measurements of ø12 - 54 mm	0.1 mm ... 3 mm		Distance measurement Thickness measurement

Controller type		Channels	Measuring rate
confocalDT IFC242x	Confocal controller for industrial applications	1 or 2	Up to 6.5kHz
confocalDT IFC246x	Light intensive controller for high speed measurements	1 or 2	Up to 30kHz
confocalDT IFC2471 HS	Confocal high speed controller	1	Up to 70kHz