Micro-Epsilon has developed Blue Laser Technology for measurement tasks on demanding surfaces. This technology is used for optical displacement and distance measurements on incandescent, organic or (semi-)transparent objects. According to the company, Blue Laser sensors deliver extremely stable signals with excellent focus.
Measurements with blue laser triangulation sensors on glowing objects over 700°C and (semi-)transparent objects are patent-protected and can therefore only be carried out with Micro-Epsilon blue laser sensors. Transparent objects include plastics, glass, adhesives, silicone, paints, coatings, Plexiglas and sealants.
"With its innovative Blue Laser technology, wide range of functions and outstanding performance, the optoNCDT 1750BL laser line triangulation sensor is the leader in its class. In addition to the paper industry, it is used in the metal, ceramics, semiconductor, food, wood and medical technology industries, where the sensor performs reliable, real-time quality control. The small optoNCDT 1750BL light spot also detects the tiniest components. Thanks to its compact design, the sensor can be integrated even in confined installation spaces", explains Micro-Epsilon.
Depending on the model, the sensor is available for measuring ranges from 20 to 750 mm. Measurement task settings and calling up predefined presets are carried out via a user-friendly web interface.
Distance measurement on pulp
Micro-Epsilon's new optoNCDT 1750BL is capable of solving a measurement task previously unattainable with conventional laser sensors. This measurement task is performed during the transition from pulp to solid paper web. By measuring at an early stage in the process, any deviations in parameters can be detected in good time, saving both materials and costs. Thanks to patented Blue Laser technology, the inline sensor measures the quality of the paper being manufactured on virtually transparent pulp. "Sensors with red laser light fail with this measurement, as the red laser shows through the still-moist pulp and delivers no stable signal," explains the company.
Diffuse measurement of transparent plastic objects is another measurement task that can only be solved with blue laser technology. The blue laser process for laser sensors, patented by Micro-Epsilon in many countries, enables precise and unique distance measurement on transparent materials. "As a rule, laser triangulation sensors work with red laser light. With their 670 nm wavelength range, these sensors reach their physical limits with incandescent, organic or (semi-)transparent objects. Patented Blue Laser technology measures at a wavelength of 405 nm. As a result, the laser light, which does not penetrate the above-mentioned objects, reproduces an extremely compact measurement spot while achieving highly accurate results, thus reproducing a sharp measurement spot while achieving highly accurate results", emphasizes Micro-Epsilon.
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