Laser-Displacement Sensor for Dynamic Applications

Micro-Epsilon has launched the OptoNCDT 2300, a high-end, self-contained laser-displacement sensor that requires no separate controller and provides a measuring speed of up to 50kHz. The sensor is suited for high-speed dynamic applications such as vibration measurement and uneven, rapidly changing surfaces. The OptoNCDT 2300 uses Micro-Epsilon's A-RTSC (Advanced Real Time Surface Compensation) technology, which enables the sensor to automatically compensate in real time for difficult-to-measure surfaces.

A-RTSC is a further development of Micro-Epsilon's patented RTSC feature, which, when combined with high-speed software algorithms, is said to dramatically reduce signal noise at high measurement speeds. When users need to measure against a shiny surface, for example, they ideally require a sensor that is able to automatically adjust the laser-pulse duration (or laser on time) of the sensor to give them the optimum exposure time on the CCD for that particular surface.

This, in turn, provides a higher accuracy measurement due to lower noise level on the output signal. The OptoNCDT 2300 laser triangulation sensor is available in five models with measuring ranges from 2mm up to 100mm. Resolution is up down to 0.1um and linearity is down to +/- 0.4um. Data output is via Ethernet, RS422 or EtherCAT. The sensor measures 80 by 75 by 30mm. Another added feature of the OptoNCDT 2300 is that the sensor can now be configured remotely by using a web browser interface.

This direct connection means the user can store parameters for a particular application, which can then be uploaded to one or multiple sensors, reducing set-up time considerably. In order to measure the thickness of transparent materials such as plastics, there is now no need for a second sensor unit to be installed. The OptoNCDT 2300 records the first and second reflection from the target surface. Micro-Epsilon will be launching the OptoNCDT 2300 at the Mtec 2011 exhibition at the NEC, Birmingham, on 6-7 April 2011.

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