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Confocal sensor measures inside confined spaces

Confocal sensor measures inside confined spaces
Micro-Epsilon's new range of miniature confocal displacement measurement sensors have a diameter of just 4mm and are therefore ideal for measuring inside confined spaces such as narrow cavities, drilled holes and bores. As well as axial measurement, the new range of sensors also includes a 90-degree version, which enables the user to measure (radially) the inner surfaces of small components. The sensor head can be rotated inside the bore, enabling the user to measure surface defects inside and to check the concentricity or roundness of a bore or drilled hole.

The sensor is targeted at a range of industry sectors including medical, biotechnology, pharmaceuticals, aerospace component inspection, electronics components and PCB measurement, machine gauging and inspection and general engineering.

The optoNCDT 2402 is a confocal miniature displacement sensor based on the Micro-Epsilon's patented lens design. Manufactured using the company's own special optical production technology, the sensor is claimed as the smallest diameter confocal displacement sensor available on the market. At a measuring range of 1.5mm, the sensor has a resolution of 0.06MICRO m at 0.004 percent full scale output. Measuring rate is from 30Hz up to 30kHz and operating temperature is from 10degC to 50degC.

Designed with a titanium housing, the optoNCDT 2402 weighs just 50g and so is ideal for machine builders and design engineers who require a lightweight, miniature displacement sensor for their application. The sensor head comprises precision optical parts without any electrical components that enable very high stability not possible with other laser optical devices.

Micro-Epsilon's complete measurement system consists of a sensor, an optical cable and a controller. Up to six different sensors can be factory-calibrated for one corresponding controller.
 

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