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Acuity's most accurate and most resolute distance sensor employs a unique measuring principle, confocal chromatic sensing. Unlike our time-of-flight and triangulation sensors which use lasers, the CCS Prima Confocal sensors use a white light source to accurately measure the distance to surfaces. Some models are accurate to within 20 nanometers. Additionally, this technology permits measurement and profile of transparent materials like glass, lenses, liquids, etc.

The essence of our confocal chromatic imaging principle is the accurate detection of colors from light that is reflected back from target surfaces. The white light is focused onto the target surface by a multi-lens optical system. These lenses disperse the light into monochromatic stages (colors) along the measurement axis. A specific distance to the target is assigned to each color’s wavelength in a factory calibration. Only the wavelength which is exactly focussed on the target is used for the measurement. This light reflected from the target surface is transmitted from the probe, through a confocal aperture and onto a spectrometer which detects and processes the spectral changes and calculates distances. These distance measurements are transmitted at high speed via ethernet communications protocol.

Acuity CCS Prima Confocal Displacement Sensor data sheet
This four-page specification sheet shares all of the technical specifications about the system including performances, electrical, mechanical, software and physical specifications. The data sheet details the cabling and outputs for the sensor for configuration.

> Access the CCS Prima Data Sheet Adobe PDF file size 1.7 MB

Acuity CCS Prima Confocal Displacement Sensor User's Manual
This user's manual is a multi-page document which explains how to operate and install the sensor hardware. Output formats are described and sensor commands are explained at length.

> Access the CCS PrimaUser's Manual Adobe PDF file size 1 MB